There are 90 sixth graders at Wilson Middle School. Only 50% of the sixth graders will attend the morning assembly. How many sixth graders will be at the morning assembly?

Answers

Answer 1

Answer: 45


Step-by-step explanation:

Divide 90 by 2 and you will the the answer of 45.

Answer 2
45
To find half of 90 you must divide by 2
90/2= 45
The percent in 50 is dropped to just 50 and 50 is half of a hundred so you find half of that number, in this case, 90

Related Questions

please help with this and show work

Answers

9. AM ≅ AT

10. x=3, y=5

AH being the perpendicular bisector of MT means MH ≅ TH. Then ΔAHM ≅ ΔAHT by SAS, and by CPCTC.

... SAS — side-angle-side: if two adjacent sides and the included angle of a triangle are congruent to their corresponding sides and angles in another triangle, the two triangles are congruent.

... CPCTC — Corresponding Parts of Congruent Triangles are Congruent

___

Using the result of problem 9 as a guide, you can say that ...

... 2x = x+3 ⇒ . . . . (subtract x from both sides)

... y +4 = 2y -1 ⇒ . . . . (add 1-y to both sides)

What would be the answers for the three boxes please help

Answers

Look at the prime factorization. If all the factors have powers that are multiples of 6, then the number is a square and a cube. If they are multiples of 3, then a cube; if multiples of 2, then a square.

1000 = 2³·5³ . . . . a perfect cube

4 = 2² . . . . a perfect square

120 = 2³·3·5 . . . . none of the above (not a square or a cube)

36 = 2²·3² . . . . a perfect square

100 = 2²·5² . . . . a perfect square

49 = 7² . . . . a perfect square

125 = 5³ . . . . a perfect cube

25 = 5² . . . . a perfect square


Last August we had 729 7th grade students. This august we started with 1084 7th grade students. what was the percent increase in 7th grade enrollment from august 2017 to august 2018?

Answers

Answer:

The percent increase was 48.7.

Step-by-step explanation:

The absolute increase in enrollment is 1084 - 729 = 355. This corresponds to a relative increase of 355/729=0.487 (relative to Aug 2017). The proportion 0.487, expressed in percent: 48.7%

Depending on your current method to exercise, you could solve this using the proportionality method: 355/729 = x/100, then cross-multiply and solve for x. Same thing.

Which rectangular prism has the greatest volume?

Answers

Answer: First prism has the greatest volume.

Step-by-step explanation:

Since we have given that

Volume of prism = Length × Breadth × Height

So, we need to find the greatest volume, for which we find volumes of all figures:

1) Volume of prism would be

[tex]5\times 7\times 5\\\\=175\ cm^3[/tex]

2) Volume of prism would be

[tex]10\times 3\times 4\\\\=120\ cm^3[/tex]

3) volume of prism would be

[tex]7\times 7\times 3\\\\=147\ cm^3[/tex]

4) Volume of prism would be

[tex]5\times 3\times 7\\\\=105\ cm^3[/tex]

Hence, first prism has the greatest volume.

The volume of the prism with the Greatest volume is 250cm³

The volume of a prism is calculated by multiplying the prism's base area by its height. Mathematically expressed as

V = Base Area×Height

, it represents the space enclosed within the prism.

Since the prism is a cuboid, then

V = l × w × h

Where h is the height , l is the length and w is the width.

V = 5 × 5 × 10

V = 250 cm³

The volume of the prism is 250cm³

please help just looking for the answer

Answers

Sine is opposite over hypotenuse.

/5

For this case, we have that by definition:

Let "x" be an angle of any vertex of a right triangle.

[tex]Sin (x) = \frac {Cathet \ opposite} {hypotenuse}[/tex]

So, if we want to find the sine of angle A:

[tex]Sin (A) = \frac {3} {5}[/tex]

Thus, the sine of angle "A" is[tex]\frac {3} {5}[/tex]

Answer:

[tex]\frac {3} {5}[/tex]

Option A

The beginning checkbook balance of Gregory Co. was $3,045.58. Their bank statement indicated a balance of $4,262.92. The bookkeeper of Gregory Co. discovered a $220.05 deposit not reflected on the statement and checks numbered 478 and 492 in the amounts of $325.50 and $497.65 still outstanding. The bank credited Gregory’s account for $651.84 for a note that they had collected. The bank charged their account $37.60 for printed checks. Their reconciled balance was (Remember: To reconcile the bank balance with the checkbook balance means to compare the two, make the necessary adjustments (debits and credits) and ensure that the two amounts are equal.)

$3,569.82. $3,659.28. $3,659.82. $6,359.82.

Answers

Answer:

$3,659.82

Step-by-step explanation:

Adding to the checkbook those debits and credits not already there brings its balance to ...

... $3045.58 +651.84 -37.60 = $3659.82

Adjusting the bank's balance by the deposits and checks not already there brings its balance to ...

... $4262.92 +220.05 -325.50 -497.65 = $3659.82

Thus, the reconciled accounts will agree on the balance $3659.82.

The reconciled balance for Gregory Co. was $3,659.82 after accounting for all transactions including deposits, outstanding checks, credited note, and bank charges.

The question involves reconciling the checkbook balance with the bank statement balance for Gregory Co. To reconcile the bank balance with the checkbook balance, we need to account for any transactions that have not been reflected in one or the other. We start with the bank statement balance and adjust it for outstanding checks and deposits not reflected on the statement.

Starting balance: $3,045.58Add outstanding deposit: $220.05Subtract outstanding checks: $325.50 + $497.65Add credited note: $651.84Subtract bank charges: $37.60Reconciled balance calculation: $3,045.58 + $220.05 - $325.50 - $497.65 + $651.84 - $37.60 = $3,659.82

At a farm, there are two huge pits for storing hay. 90 tons of hay is stored in the first pit, 75 tons in the second pit. Then, three times as much hay was removed from the first pit as was removed from the second pit. After that, there was half as much hay in the first pit as there was now in the second pit. How many tons of hay was taken from the first pit?

Answers

Answer:

63 tons

Step-by-step explanation:

The problem statement asks for the tons of hay removed from the first pit. It is convenient to let a variable (x) represent that amount. This is said to be 3 times the amount removed from the second pit, so that amount must be x/3.

The amount remaining in the first pit is 90-x.

The amount remaining in the second pit is 75 -x/3.

Since the first pit remaining amount is half the second pit remaining amount, we can write the equation ...

... 90 -x = (1/2)(75 -x/3)

... 180 -2x = 75 -x/3 . . . . multiply by 2

... 105 - 2x = -x/3 . . . . . . subtract 75

... 315 -6x = -x . . . . . . . . multiply by 3

... 315 = 5x . . . . . . . . . . . add 6x

... 63 = x . . . . . . . . . . . . . divide by 5

63 tons of hay were taken from the first pit.

_____

Check

After removing 63 tons from the first pit, there are 27 tons remaining. After removing 63/3 = 21 tons from the second pit, there are 54 tons remaining. 27 is half of 54, so the answer checks OK.

Use the graph below to write 5 conic section equations that create it. Use Desmos to check if your equations produce this picture. Hint: 3 circles, 1 ellipse and 1 parabola
1.The head(red circle)
2. The Left Eye (Blue Circle)
3. The Right Eye (Green Circle)
4. The Mouth (Purple Ellipse)
5. The Body (Black Parabola)

Answers

Answer:

See below for the graph.

Step-by-step explanation:

A circle or ellipse can be defined using the same sort of equation. Here, we have chosen to use the formulation ...

... ((x -a)/p)^2 +((y -b)/q)^2 -1 = 0

This will be the general form of the equation for an ellipse with center (a, b) and semi-axes p and q, in the x- and y-directions, respectively. When the axes are the same length, the ellipse is a circle.

By defining the function ...

... c(a, b, p, q, x, y) = ((x -a)/p)^2 +((y -b)/q)^2 -1

we can use the same function for all of the circles/ellipses in the figure. The parabola has vertex (0, -6) and a vertical scale factor of -1, so it can be formulated using the vertex form:

... y = k(x -a)^2 +b . . . . . for vertex (a, b) and vertical scale factor k.

_____

The equations

(x/6)² +(y/6) -1 = 0(x+2)² +(y-2)² -1 = 0(x-2)² +(y-2)² -1 = 0(x/3)² +(y+2)² -1 = 0y = -x² -6

Parabola is a plane curve. The iconic character can be made with the following equation as given below,

[tex](x-0)^{2}+(y-0)^{2}=6^{2}[/tex][tex](x+2)^{2}+(y-2)^{2}=1^{2}[/tex][tex](x-2)^{2}+(y-2)^{2}=1^{2}[/tex][tex](\dfrac{x}{3})^{2}+(y+2)^{2}-1=0[/tex][tex]y=-(x-0)^{2}-6[/tex]


We need to draw 3 circles, an ellipse and a parabola, in order to get the desired digram.

For a circle, we only need to know the radius of the circle and the center of the circle,

1. The head(red circle)

The head of the circle is drawn from the origin of the coordinate, while the radius can be found by dividing the length between the points where the circle cuts the x-axis.

[tex]Radius =\dfrac{6-(-6)}{2} = 6[/tex]

Equation of the circle face,

[tex]\text{Equation of the circle face} => {(x-0)^2+(y-0)^2} = 6^2[/tex]

2. The Left Eye (Blue Circle)

3. The Right Eye (Green Circle)

Similarly for the eyes of the diagram,

The right eye = [tex](x-2)^{2}+(y-2)^{2}=1^{2}[/tex]

The left eye = [tex](x+2)^{2}+(y-2)^{2}=1^{2}[/tex]

4.  The Mouth (Purple Ellipse)

The equation of the parabola can be written as,

(x/3)² +(y+2)² -1 = 0

5. The Body (Black Parabola)

The parabola can be made using the equation,

Equation of a parabola

y = a(x-h)² + k

where,

(h, k) are the coordinates of the vertex of the parabola in form (x, y);

a defines how narrower is the parabola, and the "-" or "+" that the parabola will open up or down.

Therefore, the equation for the body,

Equation of the parabola = [tex]y = -(x-0)^2 -6[/tex]

Learn more about Parabola:

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someone help pls need help on this one

Answers

Answer:

[tex]\dfrac{2}{3x^5y}[/tex]

Step-by-step explanation:

A negative exponent in the numerator is the same as a positive exponent in the denominator, and vice versa.

... a^-b = 1/a^b . . . . . for any value of b, positive or negative

The exponent of a product is the sum of the exponents:

... (a^b)(a^c) = a^(b+c)

___

Applying these rules, you have

... = 2/(3x^4·x·y) = 2/(3x^(4+1)·y) = 2/(3x^5·y)

In the figure, what is the area of the shaded region?

Answers

Use Pythagoras theorem
[tex] {(6 + 3)}^{2} + {x}^{2} = {15}^{2} \\ {x}^{2} = 144 \\ x = 12[/tex]
Two triangles are similar
[tex] \frac{6}{9} = \frac{y}{12} \\ y = 8[/tex]
(6+3)*12/2 - 6*8 /2 = 30

Answer:

30 units ^2

Step-by-step explanation:

To find the area of the shaded region, we find find the area of the large triangle and subtract the area of the unshaded triangle.


A of large triangle = 1/2 b*h

height = (6+3) = 9

The base is found by using the pythagorean theorem c^2 = a^2 + b^2

We need to  find b^2  

c^2 -a^2 = b^2

taking the square root on each side

sqrt(c^2 -a^2) = sqrt(b^2)

                           the base = sqrt(c^2 -a^2)

                                            = sqrt( 15^2 - 9^2)

                                            = sqrt(225-81)

                                             = sqrt(144)

                                              =12

Now that we know the base and the height, we can find the area


A of large triangle = 1/2 b*h

                               = 1/2 * 12 * 9

                              = 6*9 = 54


Using the rule of similar triangles

9               6

----  =  ----------

12           base


We can use cross products to find the base of the smaller triangle

9* base = 12*6

9* base = 72

Divide by 9 on each side

base = 72/9 = 8


Now we can find the area of the smaller triangle

base = 8 and height = 6

A of smaller triangle = 1/2 b*h

                                   = 1/2 *8 * 6

                                   = 4*6 = 24


Area of the shaded region = Area large triangle - Area of small triangle

                                              = 54-24

                                                = 30


graph the function. please help asap

Answers

Answer:

See the attached

Step-by-step explanation:

A graph of almost any exponential function quickly goes off-scale. The attachment shows a short table of values.

I cannot solve this. I don't know how.

Answers

Answer:f(q) = q² -2q +3f(x+h) = (x+h)² -2(x+h) +3(f(x+h) -f(x))/h = 2x -2 +hStep-by-step explanation:

The notation f(x) means you have a function that has been given the name f, and it makes use of the variable x. The variable in the parentheses is called the "argument" of the function f.

(a) To find f(q), you put q everywhere x is in the function equation. This is called evaluating the function for an argument of "q". In the following, note that we have simply changed x to q. (It's really that simple.)

... f(q) = q² -2q +3

(b) As in the previous case, we replace x with (x+h) everywhere.

... f(x+h) = (x+h)² -2(x+h) +3

You can multiply it out, but there appears to be no need to do so for this part of the question.

(c) The intent here is that f(x+h) and f(x) will be replaced by their values and the whole thing simplified. This requires you  expand the expression you see in part (b), subtract f(x), collect terms, and divide the whole thing by h. You have to make use of what you know about multiplying binomials.

We can do it in parts:

... f(x+h) = (x+h)² -2(x+h) +3

... = (x² +2xh +h²) + (-2x -2h) +3

Separating the h terms, this looks like ...

... = (x² -2x +3) + (2xh -2h +h²)

Now, we can finish the numerator part of the expression by subtracting f(x):

... f(x+h) -f(x) = (x² -2x +3) +(2xh -2h +h²) -(x² -2x +3)

You can see that the stuff in the first parentheses matches that in the last parentheses, so when we subtract the latter from the former, we get zero. We are left with only the terms containing h.

... f(x+h) -f(x) = 2xh -2h +h²

To finish up this problem, we need to divide this numerator value by the denominator h.

... (f(x+h) -f(x))/h = (2xh -2h +h²)/h

... = (2xh)/h -(2h)/h +h²/h

... = 2x -2 +h . . . . . this is the value of the expression

... (f(x+h) -f(x))/h = 2x -2 +h

Please answer ASAP will give brainliest




1. Work out the expression -2.5(1 - 2n) - 1.5n using both the Distributive Property and Combining Like Terms

2. Can we subtract -2.5 - 3.5n?

3. Can we add -2.5 + 3.5n?

4. Can we subtract -2.5 - 6.5n?

Answers

1. - 2,5(1-2n)-1,5n= - 2,5+5n-1,5n= - 2,5+3,5n
2.no
3.yes
4.no

PLZ HELP ASAP WILL MARK BRAINIEST
Which graph represents the inequality:
-6 x 2


Attachment

QUESTION 32

4 is a solution of x < -5

True

False


QUESTION 33

Solve for x: x + 3 > 5

x > 2

x > 8

x > 1

x > 3

Answers

Answer:

31) Second number line

32) False

33) x>2

Step-by-step explanation:

31) Since -6<x has only < sign but no = sign, it will be an open dot on top of -6.

Since x≤2 has = sign, it will be a closed dot on top of 2.

So, second number line is the correct option.

32) x < -5 represents all the numbers to the left of -5 on a number line like -6,-7,-8,-9 etc.

Since 4 is on the right side of -5 on the number line, it won't be a solution of the inequality x < -5.

33) x+3 > 5

Subtracting 3 from both the sides of the inequality, we have

x + 3 -3 > 5 - 3

Cancelling out the +3 and -3 from the left side, we have

x > 2

1. The 2nd number line represents the inequality.

Explanation:

In words, the inequality reads "negative six is less than x, which is less than or equal to two". On the number line, the open circle at negative six means that -6 is not a solution to the inequality: -6 < x. The point at positive two means that positive two is a solution to the inequality: x 2. Therefore, all numbers greater than -6 and less than or equal to +2 are solutions to the inequality. This is shown on the second number line.

2. False

Explanation:

In words, the inequality reads "x is less than negative five". This means that all numbers less than -5 are solutions to the inequality. Positive four is not less than negative five, so it is not a solution to the inequality.

3. x > 2

Explanation:

To solve the inequality, we have to move all the terms that do not contain x to one side. This inequality is simple because it only requires one step: subtraction.

Solve for x: x + 3 > 5

1. Subtract 3 from both sides to get x by itself:

x + 3 - 3 > 5 - 3

2. Simplify

x > 2




1.) (7.RP.3) Tracy started a savings account that is set up so that the simple interest earned on the investment is moved into a separate account at the end of each year. Tracy invests $5,000 at 4.5%, what is the total simple interest accumulated in the checking account after 2 years? Show your work. *













$4.50









$45









$450









$4,500









$45,000

2. (7.RP.3) Sylvia bought a 6-month $1900 certificate of deposit. At the end of 6 months, she received a $209 simple interest. What rate of interest did the certificate pay? *

Answers

Answer:

$450

Step-by-step explanation:

Each year, the amount of interest earned is ...

... 4.5% × $5000 = $225

After 2 years, a total of ...

... $225 × 2 = $450

has been transferred.

_____

Comment on percentages

Of course, you know that 4.5% = 4.5/100 = 45/1000 = 0.045.

You can think of the % symbol as a fancy (shorthand) way to write /100. (Likewise, the ‰ symbol means /1000.)

Find the measurement of one interior angle in each polygon. Round your answers to the nearest tenth if necessary.
Find the measure of one exterior angle in each polygon. Round your answer to the nearest tenth if necessary.

Answers

Answer:108°120°147.3°90°72°40°51.4°90°Step-by-step explanation:

1–4: The interior angle of an n-sided regular polygon is (n-2)/n times 180°. For n ∈ {5, 6, 11, 4}, this is {3/5, 4/6, 9/11, 2/4} · 180°, or {108°, 120°, 147.3°, 90°}

5–8: The exterior angle of an n-sided regular polygon is 360°/n. For n ∈ {5, 9, 7, 4}, this is 360°/{5, 9, 7, 4}, or {72°, 40°, 51.4°, 90°}

Solve each system by substitution. Tell whether the system has one solution, infinitely many solutions, or no solution.

3x+6y=18
3y=-3/2x+9

Answers

First, get one of the variables on its own. I'm going to do the first equation since it looks easier. :)

[tex]3x + 6y = 18[/tex]
Subtract 6y from both sides.

[tex]3x = 18 - 6y[/tex]
Divide both sides by 3 to get the variable alone.
[tex]x = 6 - 2y[/tex]
Plug this into the other equation for x.

[tex]3y = - \frac{3}{2} (6 - 2y) + 9[/tex]
Distribute.

[tex]3y = - 9 + 3y + 9[/tex]
Add like terms.

[tex]3y = 3y[/tex]
The system has infinitely many solutions because both sides equal each other.

Hope this helped!

:)

((− 1/2 )y^4)^3·(–16y^2)
one half of y to the power of four to the power of three times sixteen y squared

Answers

Answer:

2y^14

Step-by-step explanation:

= (-1/2)^3 · (y^4)^3 · (-16) · y^2

= (-1/8)·(-16) · (y^(4·3) · y^2) . . . . . simplify some

= 2 · y^(12 +2) . . . . . simplify more

= 2y^14

Solve for x I the equation x^2+14x+17=-96

Answers

Answer:

x=-7+8ı ,-7-8ı

Step-by-step explanation:

Move all terms to one side

x²+14x+17+96=0

Simplify x²+14x+17+96 to x²+14x+113

x²+14x+113=0

Use the quadratic Formula

x= -14+16/2 ,  -14-16ı/2

Simplify Solutions

x=-7+8ı ,-7-8ı



The graph shown represents an inequality. The solid line that forms the boundary tells you that ______.

The graph is correct.

The inequality is correct.

The inequality has no equal sign in it.

The inequality has an equal sign in it.

Answers

Answer:

D. The inequality has an equal sign it

Step-by-step explanation:

We use solid lines whenever the inequality contains [tex]\leq[/tex] or [tex]\geq[/tex]. That means it contains an equal sign which means the boundary line is inclusive.


On the other hand when the inequality does not have an equal sign in it we use a dashed line to indicate that all values on the boundary line are not inclusive.


That is we use a dashed or broken line for the boundary line of an inequality whenever it contains [tex]\:<\: or \:>\:[/tex].


The correct answer is D

PLEASE HELP ILL MARK BRAINLIEST AND THANK YOU, 100 POINTS!!!!!!!

19. Graham's class raise $200 in a coin drop for a school fundraiser. The total for the entire school campus was 4.8 * 10^3 how many times greater was the total amount raised by the school compared to grahams class? Express your answer in scientific notation.

Answers

Answer:

2.4 * 10^1

Step-by-step explanation:

Divide the two numbers. 4.8 * 10^3 = 4800


4800/200 = 24

Put into scientific notation

24 = 2.4 * 10^1

4.8 * 10^3 is 24 (2.4*10^1) times greater than 200


Final answer:

The total amount raised by the school is 24 times greater than the amount raised by Graham's class.

Explanation:

The amount raised by Graham's class is $200.

The total amount raised by the school is [tex]4.8 * 10^3.[/tex]

To find the number of times greater the total amount raised by the school is compared to Graham's class, we need to divide the total amount raised by the school by the amount raised by Graham's class.

So, we divide 4.8 * 10^3 by 200 to find the number of times greater the total amount raised by the school is compared to Graham's class.

Therefore,

[tex]= 4.8 * 10^3/ 200[/tex]

[tex]= 2.4 * 10^1.[/tex]

Therefore, the total amount raised by the school is 24 times greater than the amount raised by Graham's class.

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Simplify 4 square root of 2 end root plus 7 square root of 2 end root minus 3 square root of 2
2 square root of 8
8 square root of 2
8 square root of 6
6 square root of 8

Answers

Answer:

8√2

Step-by-step explanation:

4√2 + 7√2 - 3√2 = (√2)(4 + 7 - 3) = 8√2

Recognize that √2 is a common factor and simply add its coefficients.

[tex]4\sqrt2+7\sqrt2-3\sqrt2=(4+7-3)\sqrt2=\boxed{8\sqrt2}\\\\Answer:\ \boxed{\text{8\ square root of 2}}[/tex]

The table below shows Britney's distance, in miles, from her destination after different time intervals in hours: Time (hours) (x) 2 4 1 3 6 5 7 Distance from destination (miles) (y) 1,000 880 1,060 940 760 820 690 What is the correlation coefficient for the data, and what does it represent? 0; it represents no correlation between x and y 0.999; it represents a linear positive correlation between x and y −0.999; it represents a linear negative correlation between x and y 0.999; it represents a linear negative correlation between x and y

Answers

Answer:

r = -0.9997  

Step-by-step explanation:

A statistics calculator gives the value

r = -0.9997

You can see in the graph below that it represents an excellent negative correlation between x and y.

Every point appears to be exactly on the regression line .

It represents a linear positive correlation between x and y −0. 999.

Given

The table shows Britney's distance, in miles, from her destination after different time intervals in hours:

Time (hours) (x) 2 4 1 3 6 5 7

Distance from destination (miles) (y) 1,000 880 1,060 940 760 820 690

What is the correlation coefficient?

A number between +1 and −1 is calculated so as to represent the linear interdependence of two variables or sets of data.

Then,

The correlation coefficient for the data, and what does it represent is;

It represents no correlation between x and y.

0.999; Represents a linear positive correlation between x and y.-0.999; represents a negative correlation between x and y.0.999; it represents a negative correlation between x and y.

Hence, it represents a linear positive correlation between x and y −0. 999.

To know more about the correlation coefficient click the link given below.

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Why is -0.45, 5/12, 0, 247 rational or an irrational number.

Answers

Answer:

All are rational.

Step-by-step explanation:

Any number you can write exactly and completely, or any repeating decimal is a rational number. Any number that can only be written exactly using a symbol, such as π or √2, is an irrational number. Something like √6.25 is rational, because it can be written exactly as 2.5, without the symbol.

The idea of "rational" means the number can be expressed as the ratio of two integers. Any integer can be expressed as the ratio of itself and 1.

All of your numbers can be expressed as the ratio of integers:

... -0.45 = -45/100 . . . . any terminating decimal can be expressed as a ratio of integers by making use of the place value multipliers

... 5/12 . . . . is the ratio of integers

... 0 = 0/1

... 247 = 247/1

Ana took Ali out for lunch. Their lunches cost $13.28 and $14.25, including tax and tip. Ana paid with two $20 bills. How much change did Ana receive?

Answers

Answer:

$12.47

Step-by-step explanation:

The total charge was ...

... $13.28 +14.25 = $27.53

The change from 2 $20 bills is ...

... 2 × $20 - 27.53 = $40.00 -27.53 = $12.47

Final answer:

The total cost of lunch is $27.53. Ana paid with two $20 bills, which equals $40.00. After Ana gave the two $20 bills, she received $12.47 in change.

Explanation:

The subject area of this question is mathematics, specifically arithmetic involving decimal numbers. To solve this, we first add together the costs of the two lunches, which are $14.25 and $13.28, that result in $27.53. Ana initially pays with two $20 bills, which sums up to $40.00. Now, we subtract the total cost of the lunches from the amount Ana paid with. So, $40.00 - $27.53 gives us $12.47. This tells us that Ana received $12.47 in change back after paying for lunch.

Learn more about Arithmetic here:

https://brainly.com/question/32830972

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Analyze the diagram below and complete the instructions that follow.


Find m < 0

A.
49
B.
59
C.
63
D.
78

Answers

Answer:

A. 49°

Step-by-step explanation:

∠O is the other base angle (along with ∠Q) of the isosceles triangle OPQ. Base angles of an isosceles triangle have the same measure.

Which of the following ordered pairs is a solution to y = 2^x?

(3, 8)

(3, 9)

(3,27)

Answers

Answer:

(3, 8)

Step-by-step explanation:

For x = 3,

. . . y = 2^x

. . . y = 2^3 = 2·2·2 = 8

This is represented by the ordered pair (x, y) = (3, 8).

Answer:

(3,8)

Step-by-step explanation:

Since the answer choices are given we can plug the "x" value and see if it returns the y-value given in the ordered pair (x,y) and so:

[tex]y=2^x[/tex]

Let's use the ordered pair (3,8) meaning that when x=3 y =8 and so:

[tex]y=2^3=2\times2\times2=8[/tex]

[tex]y=8[/tex]

This is correct and so this is a solution, since the solution is unique when x=3 y is always going to return an 8.

What is the measure of ∠BCD? Enter your answer in the box. ° quadrilateral A B C D with side A B parallel to side D C and side A D paralell to side B C. angle B is 103 degrees.

Answers

Answer:

77°

Step-by-step explanation:

Angles B and C are adjacent angles of a parallelogram, so are supplementary.

... ∠C = 180° -∠B = 180° -103° = 77°

Final answer:

The measure of ∠BCD in a parallelogram with ∠B given as 103° is also 103° because opposite angles in a parallelogram are equal.

Explanation:

The measure of ∠BCD in a parallelogram can be found by using the property that opposite angles in a parallelogram are equal.

To find the measure of angle BCD, we can use the fact that angles in a quadrilateral sum up to 360 degrees.

We know that angle B is 103 degrees.

Since quadrilateral ABCD has sides AB and DC parallel, as well as sides AD and BC parallel, it is a parallelogram.

Given that ∠B is 103°, the measure of ∠BCD is also 103° because it is the angle opposite ∠B.

#2. Find the missing side. Round to the nearest tenth.

Answers

Answer:

5.3

Step-by-step explanation:

The mnemoic SOH CAH TOA reminds you that ...

... Tan = Opposite/Adjacent

... tan(24°) = x/12

Then multiplying by 12 gives ...

... 12·tan(24°) = x = 5.34274 ≈ 5.3

The price of a gallon of gasoline has increase, on average from $2.50 in 2006 to $4.00 in 2008. What is the percentage of increase?

Answers

Answer:

60% increase

Step-by-step explanation:

Percentage increase = (new - old)/ old * 100

                         

We know the new = 4.00

old = 2.50

Lets substitute the values in


Percentage increase = (4-2.5)/2.5 *100

                                   = 1.5/2.5 * 100

                                     =.6*100

                                    =60%

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