The two rectangles shown have equal areas. Find the value of x

The Two Rectangles Shown Have Equal Areas. Find The Value Of X

Answers

Answer 1

Answer:

x=18

Step-by-step explanation:

We need to find the areas of the rectangles

1st rectangle

A= l*w

A = (2x+4)*9

   = 18x+36



2nd rectangle

A = l*w

   = 15*(3x-30)

    = 45x-450


Since the area of the rectangles are equal, we set these two equations equal

18x+36 = 45x-450

Subtract 18x from each side

18x-18x+36 = 45x-18x-450

36 = 27x-450

Add 450 to each side

36+450 =27x

486 = 27x

Divide by 27 on each side

486/27 = 27x/27

18=x



Related Questions

Which quantity is proportional to 35⁄80? Check all that are true. 3⁄5 14⁄36 26⁄52 21⁄48 7⁄16

Answers

Hey there!

"Which quantity is proportional to [tex]\frac{35}{80}[/tex]?"

The easier way, I figured out how to solve  this particular problem is simplify the fraction to decimal

[tex]\frac{35}{80}[/tex] [tex]= 0.4375[/tex]

[tex]\frac{3}{5}[/tex] [tex]= 0.60[/tex] so, this one isn't your answer[tex]\frac{14}{36}[/tex][tex]=0.288889[/tex] so this one isn't your answer [tex]\frac{26}{52}[/tex][tex]=0.50[/tex]  so this one isn't your answer[tex]\frac{21}{48}[/tex][tex]=[/tex][tex]=0.4375[/tex] this one is your answer [tex]\frac{7}{16}[/tex][tex]= 0.4375[/tex] so this one is your answer

[tex]\boxed{Answer: \frac{21}{48} AND \frac{7}{16}}[/tex]

Good luck on  your assignment and enjoy your day!

~[tex]LoveYourselfFirst:)[/tex]

Answer:

3/5 no

14/36 no

26/52 no

21/48 yes

7/16 yes


Step-by-step explanation:


Describe and correct the error in rewriting the equation

2x - y=5
Y= -2x+5

Answers

2x - y = 5      subtract 2x from both sides

2x - 2x - y = 5 - 2x

- y = 5 - 2x

The sign "-" (minus) before y was lost.

Solve. Give your answer in scientific notation. (3.4x10^2)x(2x10^3)
A.1.4x10^-1
B.6.8x10^5
C.5.4x10^5
D.6.8x10^6
Plz answer

Answers

Final answer:

The multiplication of (3.4x10²) and (2x10³) results in 6.8x10⁵ after multiplying the coefficients and adding the exponents. Therefore, the correct answer is option (B).

Explanation:

Considering, the question it has asked to solve the following arithmetic operation in scientific notation: (3.4x10²)x(2x10³).

To solve this the following steps can be used :

we multiply the coefficients (3.4 and 2) and then add the exponents (2 and 3).

Multiplication of coefficients: 3.4 * 2 = 6.8

Addition of exponents: 2 + 3 = 5

Combining both parts: 6.8 x 10^5

The correct answer in scientific notation is therefore 6.8x10⁵, which corresponds with option B.

Please help
Evaluate - 8×|12|

Answers

Answer:

-96 or 96

Step-by-step explanation:

this is because the distance from zero is twelve, so it could be -12 or 12, plug both into the problem and then solve.

the absolute value |x| of a real number x is the non-negative value of x without regard to its sign.

|x| = x for x ≥ 0.

|x| = -x for x < 0.

Examples:

|2| = 2

|-5| = -(-5) = 5

If is -8 × |12| = -8 × 12 = -96

If is 8 × |12| = 8 × 12 = 96

What is equal to 19.04 divided 5.6

Answers

Answer: 19.04 divided by 5.6 is 3.4


Step-by-step explanation:


Simplify 7x +42/ x2+13x +42

Answers

[tex]\dfrac{7x+42}{x^2+13x+42}=\dfrac{7(x+6)}{x^2+7x+6x+42}=\dfrac{7(x+6)}{x(x+7)+6(x+7)}\\\\=\dfrac{7(x+6)}{(x+7)(x+6)}=\boxed{\dfrac{7}{x+7}}[/tex]

Your answer should be 2(10x^3+21x^2+21) over X^2 2(10x^3+21x^2+21)/X^2 unless the / was a fraction symbol and not a division symbol then your answer would be 7 over x+7 7/x+7

What is the result of factoring out the GCF from the expression (24 + 36)?

A. 12 × (12 + 18)
B. 12 × (2 + 3)
C. 6 × (8 + 12)
D. 12 × (4 + 6)

Answers

24 = 2 · 2 · 2 · 3

36 = 2 · 2 · 3 · 3

GCF(24, 36) = 2 · 2 · 3 = 12

24 = 12 · 2

36 = 12 ·3

24 + 36 = 12 × 2 + 12 × 3 = 12 × (2 + 3)

Answer: B.
Final answer:

The result of factoring out the Greatest Common Factor (GCF) from the expression (24 + 36) is 12 × (2 + 3).

Explanation:

To factor out the Greatest Common Factor (GCF) from the expression (24 + 36), we first need to determine the largest number that divides evenly into both 24 and 36. The GCF of 24 and 36 is 12. We divide each term by the GCF to factor out it from the expression:

24 ÷ 12 = 2

36 ÷ 12 = 3

Thus the expression factored out by the GCF is 12 × (2 + 3).

Learn more about Factoring Out GCF here:

https://brainly.com/question/29055991

#SPJ3

Which expression represents the approximate length of bc?

Answers

Hello from MrBillDoesMath!

Answer:

BC = 3 * sin (66)/ sin(38)

Discussion:

From the law of sines:

sin(38) /3 = sin(66)/ BC

BC *  (  sin(38)/3 )  = sin(66)        => multiply both sides by BC

BC = sin(66) /  ( sin(38)/3)           => multiply both sides by ( 3/sin(38) )

BC = 3 * sin (66)/ sin(38)

which is the first choice.

Regards,  

MrB

P.S.  I'll be on vacation from Friday, Dec 22 to Jan 2, 2019. Have a Great New Year!


Answer:

answer is A

Step-by-step explanation:..

My teacher never taught us this, but expects us to know

Answers

I'll do problem 77 to get you started

Point slope form is this general equation

y - y1 = m(x - x1)

with m as the slope and (x1,y1) as the point the line goes through. In this case, m = -4 and (x1,y1) = (-2,9)

Plug those values into the equation to get...

y - y1 = m(x - x1)

y - 9 = -4(x - (-2))

y - 9 = -4(x + 2) see note 1

y - 9 = -4x - 8

y = -4x - 8 + 9

y = -4x + 1 see note 2

--------

note 1: If your teacher wants the answer in point slope form, then you stop on this line. Otherwise, keep going

note 2: This is in slope intercept form y = mx+b with m = -4 as the slope and b = 1 as the y intercept

Find X and K in this pair of similar triangles.

Answers

Answer:

side X is 5 and side k is 6

Step-by-step explanation:


If you let y = length of the foot and x = length of the forearm, this equation can be simplified to y = 0.860x + 3.302. Using this equation, how long would the foot of a person be if his forearm was 17 inches long? Be sure to show your work using the equation above.

Answers

Answer:

17.922

Step-by-step explanation:

first you plug it in

y=0.860(17) + 3.302

then u simplify

y=14.62+3.302

then add them

y=17.922

Answer:

17.922 inches long

Step-by-step explanation:

y=0.860x + 3.302

y= 0.860(17) + 3.302

y= 14.62 + 3.302

y=  17.922

Hope it helps!!

Julie had $2000 in her savings account, but then she purchased a plane ticket for spring break, decreasing her savings account by 14%. How much was her plane ticket? How much money was left in the account after she bought it?

Answers




Step-by-step explanation:


What is the reference angle in degrees for 31π 6 ?

Answers

The reference angle for [tex]31\pi[/tex] 6 by conversion of radians to degrees is [tex]210^o[/tex].

One radian is defined as the angle formed by the center of a circle intersecting an arc of length equal to the radius of the circle.

There are [tex]\pi[/tex] radians in [tex]180^o[/tex], So,[tex]\dfrac{31\pi}{6}[/tex] must be multiplied by [tex]\dfrac{180}{\pi}[/tex]to obtain the angle in degrees.

[tex]\dfrac{31\p}{6} \times \dfrac{180}{\pi}[/tex]

= [tex]\dfrac{31 \times 180}{6}[/tex]

=[tex]31 \times 30[/tex]

= [tex]930^o[/tex]

Since the reference angle is always positive and is formed with the x-axis, we need to find the acute angle formed between the terminal side of the angle and the positive x-axis.

The reference angle can be calculated by subtracting the closest multiple  [tex]180^o[/tex] from the angle in degrees.

[tex]930^o - 2\times 180^o[/tex]

= [tex]930^o - 360^o[/tex]

=[tex]570^o[/tex]

However, the reference angle should always be between [tex]0^o[/tex] and [tex]180^o[/tex] So, we take the smaller angle, which is

[tex]570^o- 360^o[/tex]

= [tex]210^o[/tex]

Therefore, the reference angle in degrees  [tex]31\pi6[/tex] is [tex]210^o[/tex]

Learn more about reference angles here:

https://brainly.com/question/4805948

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The reference angle of the given angle is [tex]30\textdegree.[/tex]

Converting the given angle from radians to degrees:

We know that [tex]\pi[/tex] radians is equal to 180°. Therefore,

[tex]\frac{31\pi}{6}\ radians \times \frac{180\textdegree}{\pi} = \frac{31}{6}\times 180 = 930\textdegree[/tex]

Finding the equivalent angle between 0° and 360°:

Since 930° is greater than 360°, an equivalent angle needs to be found by subtracting multiples of 360° until an angle between 0° and 360° is obtained.

930°−2×360°=930°−720°=210°

Determining the reference angle:

The reference angle is the acute angle that the given angle makes with the x-axis. Since 210° is in the third quadrant, calculating the reference angle as:

210°−180°=30°

Therefore, the reference angle for [tex]\frac{31\pi}{6}[/tex]​ is 30°.

-2⁄3 a − 6 = 12
a =

Answers

Answer:

a = -27

Step-by-step explanation:

-2⁄3 a − 6 = 12

add 6 to both sides:-

-2/3 a -6 + 6 = 12 + 6

-2/3 a = 18

Now multiply each side by -3/2:-

a = 18 * -3/2 =  -54/2

=  -27

Final answer:

To solve the equation -2⁄3 a - 6 = 12 for 'a', add 6 to both sides of the equation and then multiply both sides of the equation by -3/2 to isolate the variable 'a'. The value of 'a' that satisfies the equation is a = -27.

Explanation:

To solve the equation -2⁄3 a - 6 = 12 for 'a', we can start by isolating the variable on one side of the equation. First, let's add 6 to both sides of the equation:

-2⁄3 a - 6 + 6 = 12 + 6

-2⁄3 a = 18

Next, we can multiply both sides of the equation by -3/2 to get:

(-3/2)(-2/3 a) = (-3/2)(18)

a = -27

The value of 'a' that satisfies the equation -2⁄3 a - 6 = 12 is a = -27.

PLEASE PLEASE PLEASE HELP! WILL BE GIVING OUT BRAINLIEST AND LOTS OF POINTS!!!!!!!
Gina looks at the architectural plan of a four-walled room in which the walls meet each other at right angles. The length of one wall in the plan is 17 inches. The length of the diagonal of the floor of the room in the plan is approximately 18.79 inches. Is the room in the shape of a square? Explain how you determined your answer. Show all your work.

Answers

Final answer:

The room is not a square, as shown by applying the Pythagorean theorem, because the calculated diagonal of a square with 17-inch sides would be approximately 24.04 inches, not 18.79 inches.

Explanation:

To determine if the room is in the shape of a square, we can use the Pythagorean theorem, which relates the lengths of the sides of a right-angled triangle. For a square, the lengths of all four sides are equal. Therefore, if we assume that the length and the width of the room are both equal to the given wall length of 17 inches, the diagonal (d) of the square can be calculated using the Pythagorean theorem:

c2 = a2 + b2
where c is the length of the diagonal, and a and b are the lengths of the sides of the square.

So, it would be:

c2 = 172 + 172
    = 289 + 289
    = 578

Now we find the square root of 578 to find the length of the diagonal (c):

c ≈ √578 ≈ 24.04 inches

Since the given diagonal length is approximately 18.79 inches, and our calculated value for the diagonal of a square with sides 17 inches is approximately 24.04 inches, the room is not a square. The diagonal is too short for the room to be a square given the 17-inch wall.

The inverse of y = 2x + 2 is

Answers

Answer:

The inverse of given function is [tex]y=\frac{1}{2}x-1[/tex].

Step-by-step explanation:

The given function is

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

The step and shown below to find the inverse of the function.

Step 1: Interchange x and y.

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

Step 2: Isolate variable y.

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

[tex]\frac{1}{2}(x-2)=y[/tex]

[tex]\frac{1}{2}(x)+\frac{1}{2}(-2)=y[/tex]

[tex]\frac{1}{2}(x)-1=y[/tex]

Therefore the  inverse of given function is [tex]y=\frac{1}{2}x-1[/tex].

Answer:

The inverse of y = 2x+2 is 1/2x-1.

Step-by-step explanation:

Given equation is

y = 2x+2

let y = f(x) = 2x+2

We have to find the inverse of given function.

Adding -2 to both sides of given equation,we get

y-2 = 2x+2-2

y-2 = 2x

dividing by 2 to both sides of above equation , we have

(y-2) / 2 = 2x / 2

y/2 - 1 = x

Swapping equation, we have

x = y/2-1

put x = f⁻¹(y) in above equation ,we have

f⁻¹(y) = y/2 -1

Replace y with x , we have

f⁻¹(x) = x/2-1

Hence , the inverse of given function is 1/2x-1.

What is the value of the problem below?

Answers

Answer:

90

Step-by-step explanation:

The first term  = 6* 2^0 =  6

The second term = 6 * 2^ (2-1) = 6*2 = 12

The third term = 6* 2^(3-1) = 6*2^2 = 6*4 = 24

The fourth term = 6* 2^(4-1) = 6* 2^3 = 6*8 = 48

S4  is the sum of the 1st four terms

S4 = 6+ 12+24+ 48 = 90

The temperature today is 7 degrees celsius. Yesterday it was 13 degrees celsius cooler. What was the temperature yesterday?

Answers

Answer:

The temperature yesterday was -6 because 7-13 is -6.

Step-by-step explanation:


Answer:

The yesterday’s temperature is 6°C below the zero degree Celsius or (-6) degree Celsius.

Step-by-step explanation:

The temperature today is 7 degrees Celsius. Yesterday was 13 degrees Celsius cooler. That the temperature is colder means that the temperature was lower than today's temperature. This means that to obtain the temperature on the previous day, 13°C must be subtracted from today's temperature.

yesterday’s temperature=today’s temperature-13°C

It is now possible to replace today's temperature with 7 ° C

yesterday’s temperature=7°C-13°C

Remember that to subtract two integers of a different sign (one positive and the other negative), as in this case, you must subtract their absolute values (that is, subtract 13-7 = 6), and the answer will have the same sign as the number with the highest absolute value (absolute value or module of any real number is the same number but with a positive sign). As in absolute value 13 is greater than 7, the answer to the subtraction will be negative

yesterday’s temperature=7°C-13°C

So, finally, the yesterday’s temperature is 6°C below the zero degree Celsius or (-6) degree Celsius.

What is the formula for calculating taxable income?

Answers

Taxable income = adjusted income − (deductions + allowance for exemptions) With deductions, you can itemize deductions or use the standard deduction.

Rewrite in simplest radical form

Answers

Answer:

sqrt(x)

Step-by-step explanation:

1/ ( x^(-3/6))

We can simplify the fraction

1/ ( x^(-1/2))

A negative exponent means that since it is in the denominator, it goes to the numerator.  It still keeps the exponent.

x^ (1/2)

sqrt(x)


Find the volume of a sphere

Answers

v=4/3 πr^3.

Use this formula

It could be possibly this

v=4/3 πr^3  


I hope it helped AND  I hope it's right,,

2. Marco has a jug with 37 ½ ounces or juice. He wants to use some small cups to pass out samples of the juice. Each cup hold 2 ½ ounces of juice. How many cups can marco fill with juice samples?

Answers

Answer: Marco can fill 15 of the 2 1/2 Cups

Step-by-step explanation:

37.5 divided by 2.5

or

37 1/2 divided by 2 1/2



Answer:

Marco can fill 15 of the 2 1/2 Cups      

37 1/2 divided by 2 1/2

find the common ratio for this geometric sequence 8, 2, 1/2, 1/8, 1/32

Answers

Answer:

Multiply 1/4 ; dividing 4

Step-by-step explanation:

Note that in each number going from left to right, it decreases by dividing 4 each time (or multiplying 1/4)

8/4 = 2 ; 2/4 = 1/2 ; (1/2)/(4) = 1/8 ; etc.

(8)(1/4) = 2 ; (2)(1/4) = 1/2 ; etc.

~

Answer: 1/4

Step-by-step explanation:

is Y=2 to the 2nd power linear or non linear why?

Answers

Answer:

Linear

Step-by-step explanation:

y = 2^2

y = 4

This is a line.  4 is constant.  

Y to a constant value is a horizontal line

A function f(x) is graphed.
What is the slope of the function? M= 1,2,3,4
What is the y-intercept of the function? B= -2,-1,1,2
Which equation represents the graph of the function y=-x+2 , y=x+2 , y=2x+1 , y=-2x+1

Answers

Answer:

Point-Slope form: The equation of line is given by:

[tex]y-y_1=m(x-x_1)[/tex]              ......[1]

where m is the slope and [tex](x_1,y_1)[/tex] is the point on the line.

From the given graph:

Consider two points i.e,

[tex](0, 1)[/tex] and (-0.5, 0)

Calculate slope:

Formula for slope is given by;

[tex]\text{Slope}(m) = \frac{y_2-y_1}{x_2-x_1}[/tex]

Substitute the given values we have;

[tex]m = \frac{0-1}{-0.5-0} = \frac{-1}{-0.5} = \frac{10}{5} =2[/tex]

Now, substitute the value of m = 2 and (0, 1) in equation [1] we have;

[tex]y-1 = 2(x-0)[/tex]

y-1 = 2x

Add 1 to both sides we get;

y = 2x+1

On comparing equation y = 2x+1 with the slope intercept form of a line (i.e, y = mx+b) then we have;

slope(m) = 2

y-intercept(b) = 1

therefore, the slope of the function:

m = 2

y-intercept(b) = 1

and the equation represents the graph: y = 2x+1



Answer:

2

1

y = 2x + 1

Step-by-step explanation:

All geometric figures,shapes,and solids can be named using sets of

Answers

Answer:

All geometric figures, shapes and solids can be named as a sets of surface regions and plane regions and they all lie in three dimensional spaces.

Step-by-step explanation:


Matt had a full jar of marbles. He gave Kayla 3/4 of the marbles. Then Kayla returned 1/3 of a jar's worth of marbles to the jar. how much of the jar is full of marbles?

Answers

Answer: 7/12 jar is full of marbles

Step-by-step explanation:

Matt had full Jar  of Marbles =  1

After giving 3/4 to Kayla , jar has marbles = [tex]1-\frac{3}{4}  \\=\frac{4}{4} -\frac{3}{4} \\=\frac{1}{4}[/tex]

Kayla returned  =   1/3 of Jar

Now jar has marbles =     1/3+ 1/4

                                 =   4/12 + 3/12     [ making denominator same]

                                 =  7/12


HELPP plzzzzz plzzzz

Answers

Answer:

121/100

Hope it helps!



you can see there's ",21", so it has 2 zecimals

=> we multiply with 100

1,21= 121/100

simple.

Compute the amount of interest earned in the following simple interest problem. A deposit of 1,295 at 7% for 180 days=____. (note: use 365 days in a year

Answers

The interest earned is approximately $50.06.

To calculate the amount of interest earned in a simple interest problem, we can use the formula:

[tex]\[ \text{Interest} = \text{Principal} \times \text{Rate} \times \frac{\text{Time}}{\text{Total days in a year}} \][/tex]

Given:

- Principal (P) = $1,295

- Rate (R) = 7% or 0.07

- Time (T) = 180 days

- Total days in a year = 365 days

Plugging these values into the formula:

[tex]\[ \text{Interest} = 1295 \times 0.07 \times \frac{180}{365} \]\[ \text{Interest} = 1295 \times 0.07 \times \frac{180}{365} \]\[ \text{Interest} \approx 1295 \times 0.07 \times 0.493150685 \]\[ \text{Interest} \approx 50.05958904 \][/tex]

When you own a pet, there are one-time costs, such as a leash, and continuing costs, such as food. Suppose the one-time costs for owning a small dog are $180, and the continuing costs are $400 per year Which function models the average annual cost of owning a small dog for x years?

Answers

Answer:

Average cost per year = 400 + 180/x

Step-by-step explanation:

Using the formula y=mx+b

We know that b is the y intercept or  initial value.  That would be the start up costs

m is the slope on costs each time x increases, that would be 400 per year

Costs = 400x + 180

To find the average cost per year, we need to divide by x

Average cost per year = (400x + 180)/x

                        = 400 + 180/x

Answer:

answer to this question is f(x)  = (180 + 400x)/x

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