Answere and How to do

Answere And How To Do

Answers

Answer 1

Answer:

-25

Step-by-step explanation:

if you are multiplying x by -2/5 you have to divide each side by it to get

x = 10 ÷ -2/5

and if you change it to (10/1)/(-2/5)

                                    =(10/1) • -5/2

and whene you multiply them you get -50/2

which is -25/1 or -25


Related Questions

A bag of flour weigh 3 lb. If a chef needs 15 lb. of flour, how
many bags of flour should he buy?​

Answers

Answer:

The chef would need 5 bags

Step-by-step explanation:

Because 3 times 5 equals 15

To determine the number of bags of flour the chef should buy, divide the total weight required (15 lb) by the weight of one bag (3 lb), resulting in the need to purchase 5 bags.

To find out how many bags of flour the chef should buy, we need to divide the total weight of flour needed by the weight of one bag. If a bag weighs 3 lb, and the chef needs 15 lb, we calculate it as follows:

Determine the total weight needed: 15 lb.

Determine the weight of one bag: 3 lb.

Divide the total weight by the weight of one bag: 15 lb \/ 3 lb = 5 bags.

Therefore, the chef should buy 5 bags of flour to have a total of 15 lb.

Simplify 4+(-3)-2x(-6)

Answers

Answer:

13

Step-by-step explanation:

Use the order of operations.

First multiplication next addition and subtraction (from left to right).

4 + (-3) - 2 × (-6)

= 4 - 3 + 12

= 1 + 12

= 13

(-)(-) = (+)

(+)(-) = (-)(+) = (-)

(+)(+) = (+)

Answer:

13

Step-by-step explanation:

12x+1 = 13

in a 30-60-90 triangle, the length of the side opposite the 30 angle is 8. find the length of the side opposite the 60 angle

Answers

Answer:

[tex]8\sqrt{3}\ units[/tex]

Step-by-step explanation:

Let

x----> the side opposite the 60 angle

Applying the law of sines

[tex]\frac{8}{sin(30)}=\frac{x}{sin(60)}\\ \\x=8*sin(60)/sin(30)\\ \\x=8\sqrt{3}\ units[/tex]

Which of these statements is true for f(x)=(1/2)^x

Answers

Answer:

The correct option is C.

Step-by-step explanation:

The general exponential function is

[tex]f(x)=ab^x[/tex]

Where, a is initial value and b is growth factor.

The given function is

[tex]f(x)=(\frac{1}{2})^x[/tex]

Here [tex]b=\frac{1}{2}<1[/tex], therefore it is a decay function. In other words, the given function always decreases.

The given function is defined for all real numbers, therefore the domain of the function is all real number.

Put x=0, to find the y-intercept.

[tex]f(x)=(\frac{1}{2})^0=1[/tex]

The y-intercept of the function is at (0,1). Therefore option C is correct.

[tex](\frac{1}{2})^x>0[/tex]

[tex]f(x)>0[/tex]

Therefore the range of the function is y>0.

Answer:

The correct answer is C: The y-intercept is (0,1).

[(8 x 7)] - 35 divided by 3 + 2

Answers

[tex]\frac{21}{5}[/tex]

Start with your equation: [tex]\frac{(8 * 7) - 35}{3 + 2}[/tex]

Now, simplify the multiplication: [tex]\frac{56 - 35}{3 + 2}[/tex]

Then, simplify the addition and subtraction: [tex]\frac{21}{5}[/tex]

This fraction cannot be simplified further, so it is the answer.

Answer:

[tex]\frac{\left(\left(8x\cdot \:7\right)\right)-35}{3+2}=\frac{56x-35}{5}[/tex]

[tex]\frac{8x\cdot \:7-35}{3+2}\\\mathrm{Multiply\:the\:numbers:}\:8\cdot \:7=56; =\frac{56x-35}{3+2}\\\mathrm{Add\:the\:numbers:}\:3+2=5; =\frac{56x-35}{5}[/tex]

Hope this helps and have a great day!!!

[tex]Sofia[/tex]

Find the distance between these points. R(-1, 0), S(8, 6)

Answers

ANSWER

[tex]d = 3 \sqrt{13} [/tex]

EXPLANATION

We use the distance formula to find distance between two points.

[tex]d = \sqrt{(x_2-x_1)^2 +(y_2-y_1)^2} [/tex]

The two points are R(-1, 0) and S(8, 6).

We substitute the points into the formula to get:

[tex]d = \sqrt{(8 - - 1)^2 +(6-0)^2} [/tex]

[tex]d = \sqrt{(9)^2 +(6)^2} [/tex]

[tex]d = \sqrt{81+36} [/tex]

[tex]d = \sqrt{117} [/tex]

[tex]d = 3 \sqrt{13} [/tex]

Therefore the distance between the two points is [tex]3 \sqrt{13} [/tex] units.

Answer:

The distance between these points = 3√13

Step-by-step explanation:

Points to remember

Distance formula

Length of a line segment with end points (x1, y1) and (x2, y2) is given by,

Distance = √[(x2 - x1)² + (y2 - y1)²]

It is given two points R(-1, 0) and  S(8, 6)

To find the distance

Here, (x1, y1)  = (-1, 0) and (x2, y2) = (8, 6)

Distance = √[(x2 - x1)² + (y2 - y1)²]

= √[(8 - -1)² + (6 - 0)²]

= √[(8+1)² + (6)²]

 =√[(9)² + (6)²]

 = √[(81 + 36)]

 =√117 = √(3 * 3 * 13)

 = 3√13

The distance between these points = 3√13

A math teacher assigns three projects. She gives the students five project options to choose from. How many different groups of projects can students choose from?

Answers

Answer:

15

Step-by-step explanation:

3 options x 5 options = 15 total options

The sum of two numbers is 40. The second number is 5 less than twice the first number. Let x represent the first number and let y represent the second number. What is the value of the first number? Use the table to guess and check. 15 20 25 30

Answers

Answer:

Step-by-step explanation:

X+2x-5= 40

3x-5=40

+5=+5

3x=45

3x/3=45/3

X=15

Answer:

The value of the first number is 15

Step-by-step explanation:

The sum of two number is 40 would be:

[tex]x+y=40[/tex]

The second number is 5 less than twice the first number would be:

[tex]y=2x-5[/tex]

Now, we can find the value by solving this system of equations, we will isolate x in the first equation, then we replace it in the second equation:

[tex]x=40-y[/tex]

[tex]y=2(40-y)-5\\y=80-2y-5\\y+2y=75\\3y=75\\y=\frac{75}{3}=25[/tex]

Then, we replace this value in one equation of find the other variable:

[tex]x+25=40\\x=40-25\\x=15[/tex]

Therefore, the value of the first number is 15 and the second number is 25.

A store donated cases of crayons to a daycare center. Each case holds 24 boxes of crayons; each box holds 8 crayons. How many crayons did the center receive?

Answers

In order to find out the total number of crayons, you multiply the number of cases by the number of boxes per case, and then by the number of crayons per box. Assuming the store donated 5 cases, the daycare center received a total of 960 crayons.

To determine how many crayons the daycare center received from the store, we need to multiply the number of cases the store donated by the number of boxes in each case, and then multiply that by the number of crayons in each box. Let's break it down step by step:

Find the total number of boxes by multiplying the number of cases by the number of boxes in each case.Find the total number of crayons by multiplying the total number of boxes by the number of crayons in each box.

Assuming the store donated 5 cases (the number of cases was not specified in the question, so we need to assume a number for this example), here's how you would calculate it:

Total number of boxes = 5 cases * 24 boxes/case = 120 boxesTotal number of crayons = 120 boxes * 8 crayons/box = 960 crayons

Therefore, the daycare center received a total of 960 crayons.

Can someone please help me do the work

Answers

Answer:

C. 1 and 3

Step-by-step explanation:

You are right, now here's why.

You are looking for two equations that have the same constant of proportionality.  That means they behave the same, that if you enter a X value in one, you'll get the same effect as if you enter it in another.

If you look at all four equations, you'll see that 1 and 3 are essentially the same thing, just that the first one is simplified (4y = 3x) while the other isn't (8y = 6x).  But for each time you enter a X value, the Y value will be 33% (1/3) bigger.

Simplify the expression. x^14/x^7

Answers

Answer:  x7

 x7

Step by step solution :

Step  1  :

           x14

Simplify   ———

           x7  

Dividing exponential expressions :

1.1    x14 divided by x7 = x(14 - 7) = x7

Answer:

x7

Step-by-step explanation:

x>y, and the difference between x and y is 5. The number x is 1 more than twice the number y.

Answers

Answer:

the answer is d

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Find the surface area of the open top flower box shown

Answers

Answer: [tex]68ft^2[/tex]

Step-by-step explanation:

The formula for calculate the surface area of a rectangular prism is:

[tex]SA=2lw+2lh+ 2wh[/tex]

Where "l" is the lenght, "w" is the width and "h" is the height.

In this case, you know that the top of the flower box is opened, then, the formula changes to:

[tex]SA=lw+2lh+2wh[/tex]

You can identify that the dimensions of the box are:

[tex]l=10ft\\w=2ft\\h=2ft[/tex]

Then you must substitute these values into the formula [tex]SA=lw+2lh+2wh[/tex].

 Finally, you get that the surface area of the open-top flower box is:

[tex]SA=lw+2lh+ 2wh\\SA=(10ft)(2ft)+(2)(10ft)(2ft)+(2)(2ft)(2ft)]\\SA=68ft^2[/tex]

Answer:

The surface area of box =  64 ft²

Step-by-step explanation:

From the figure we can see that a cuboid with length = 10 ft, width = 2 ft and height = 2 ft

To find the surface area of cuboid

Surface area = 2(lb + bh +  lh) - lh

  = [2(10 * 2) + (2 * 2) + (10 * 2)] - (10 * 2)

  = [2( 20 + 4 + 20)] - 20

  = 2 * 44 - 20 = 84 - 20 = 64 ft²

The correct answer is surface area of box =  64 ft²

graph the following inequality x≥2​

Answers

Answer:

The graph is as attached.

Step-by-step explanation:

Simply draw a line of x = 2 on your graph paper.

That line should be a complete line not dotted line.

Since x is greater than 2, shade the left side of the line because we are interested in the right side (where x is greater and equal to 2)

Answer:

Here, the given inequality,

[tex]x\geq 2[/tex]

Related equation is,

x = 2

Which is the equation parallel to y-axis and passes through (2,0),

Also, 0 ≥ 2 ( False )

The shaded region of the inequality will not contain the origin,

Now, '≥' shows the solid line.

Thus, by the above explanation,

We can graph the given inequality ( shown below )

from a balloon 1127 feet high, the angle of depression to the ranger headquarters is 79° 56'. how far is the headquarters from a point on the ground directly below the balloon?​

Answers

Check the picture below.

make sure your calculator is in Degree mode.

Ken earned $128 from his part time job this summer he spent 25% of his money on games he is going to donate 1/6 of the remaining money to charity how much money will the charity recieve

Answers

Final answer:

Ken earned $128 from his part-time job and spent 25% of it, leaving him with $96. He then donated 1/6 of the remaining money to charity, which equals $16.

Explanation:

This problem is about percentages and fractions. Ken earned $128 from his part-time job and spent 25% of it on games, which equals <$128 * 25/100 = $32>. So after buying games, Ken is left with <$128 - $32 = $96>. Ken then decides to donate a fraction, 1/6 of the remaining money to charity. To figure out how much he donates, we multiply $96 by 1/6, which is <$96 * 1/6 = $16>. So, Ken donates $16 to charity from his summer job earnings.

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Which variable is discrete
a time to finish a race
b temperature at start of race
c number of runner in race
d length of race in kilometers

Answers

Answer:

C. The number of runners in a race

Step-by-step explanation:

Variables can be widely be classified as either discrete or continuous. A continuous variable is a variable which can take on any value within its domain. A continuous variable can take on fraction of units. Examples of continuous variables include;

time to finish a race - it can be 10.5 sec or 35.56 sec

temperature at start of race - the temperature could be 25.5 K, or 45.57 K

length of race in kilometers - the length could be 20 km, 22.45 km or 38.8 km

All the above variables can be measured in fraction of units and are thus continuous in nature.

On the other hand, a variable is said to be discrete if it can take on only integer values. An example in this case would be ;

the number of runners in a race. We can only have, 10, 45, 600, 565 and so on runners but never a fraction of a runner.

Write a rule to find the nth term for an arithmetic sequence given the following:

a3 = 14
a12 = 59

Recursive rule: ?
Explicit rule: ?

Write an explicit and recursive rule for a sequence given the following:

a4 = 2
r = 1/3

Recursive rule: ?
Explicit rule: ?

Answers

ANSWER

See explanation

EXPLANATION

Question 1:

The third term of the arithmetic sequence is :

14=a+2d...(1)

The twelveth term is

59=a+11d...(2)

Subtract equation (1) from (2)

45=9d

This implies that

d=5

a=14-2(5)=4

The explicit rule is;

[tex]a_{n}=4 + 5(n - 1)[/tex]

[tex]a_{n}=4 + 5n -5[/tex]

[tex]a_{n} = 5n -1[/tex]

Recursive formula:

[tex]a_{n}=a_{n - 1} + 5[/tex]

Question 2

The geometric sequence has the fourth term to be 2 and the common ratio to be r=⅓

This implies that,

[tex]a {( \frac{1}{3} })^{3} = 2[/tex]

This implies that,

[tex] \frac{a}{27} = 2[/tex]

[tex]a = 54[/tex]

The explicit rule:

[tex]a_n=54 {( \frac{1}{3} })^{n - 1} [/tex]

The recursive rule is

[tex]a_n=( \frac{1}{3} )a_{n-1}[/tex]

where,

[tex]a_1 = 54[/tex]

Answer:

I'm having trouble with this type of math to so your not alone

Step-by-step explanation:

Diego's family car holds 18 gallons of fuel. Each day the car uses .8 gallons of fuel. A warning light comes on if the remaining fuel is 1.2 or less.

a. starting from full tank, can Diego's car go 15 days without the warning light turning on?

b. starting from a full tank, can Diego's car drive 20 days without the light coming on?

c. Deigo says that the expression 18-.8t helps him understand, what does T stand for?

d. write and solve an equation to determine the number of days his car can go before the warning light turns on.

e. write and solve an inequality that represents this situation. Explain clearly what the solution to the inequality means in the context of this situation.​

Answers

Answer:

a) yes

b) yes

c)  days

d) equation: 18 - 0.8x =1.2

solution: 21

e)inequality: equation: 18 - 0.8x [tex]\geq[/tex]1.2

solution: x < 21. This means that if he drives for less than 21 days the warning sign won't turn on.

Step-by-step explanation:

a) 18 - 15*0.8 = 6 so yes

b) 18 - 20*0.8 = 18 - 16 = 2

d) 18 - 0.8x =1.2

0.8x = 16.8

x = 16.8/0.8 = 21

Final answer:

a. No, the car cannot go 15 days without the warning light turning on. b. No, the car cannot drive 20 days without the light coming on. c. 'T' in the expression 18 - 0.8t stands for the number of days of fuel usage. d. Diego's car can go 21 days before the warning light turns on. e. The inequality 18 - 0.8t > 1.2 represents the situation.

Explanation:

a. To determine if Diego's car can go 15 days without the warning light turning on, we need to find out how much fuel will be left after 15 days of usage. Each day the car uses 0.8 gallons of fuel, so after 15 days, the car will have used 15 * 0.8 = 12 gallons of fuel. Starting from a full tank of 18 gallons, the remaining fuel after 15 days will be 18 - 12 = 6 gallons. Since the warning light comes on if the remaining fuel is 1.2 gallons or less, Diego's car will not be able to go 15 days without the warning light turning on.

b. To determine if Diego's car can drive 20 days without the light coming on, we follow the same steps as in part a. After 20 days, the car will have used 20 * 0.8 = 16 gallons of fuel. Starting from a full tank of 18 gallons, the remaining fuel after 20 days will be 18 - 16 = 2 gallons. Since the remaining fuel is less than 1.2 gallons, the warning light will turn on before 20 days.

c. In the expression 18 - 0.8t, 't' represents the number of days of fuel usage.

d. To determine the number of days Diego's car can go before the warning light turns on, we need to solve the equation 18 - 0.8t = 1.2. Rearranging the equation, we have 0.8t = 18 - 1.2, which simplifies to 0.8t = 16.8. Dividing both sides by 0.8, we get t = 21. So Diego's car can go 21 days before the warning light turns on.

e. To write an inequality that represents this situation, we can say that the remaining fuel after t days should be greater than 1.2 gallons. This can be expressed as 18 - 0.8t > 1.2. Solving this inequality, we get t < 21. This means that Diego's car can go up to 20 days before the warning light turns on, but on the 21st day, the warning light will turn on.

identify the domain and range of the function graphed below

Answers

Answer:

Part 1) The domain is

[tex]x\leq 4[/tex]

All real numbers less than or equal to 4

Part 2) The range is

[tex]y\geq 0[/tex]

All real numbers greater than or equal to 0

Step-by-step explanation:

Part 1) Find the domain

Observing the graph

we know that

The domain is the interval for x ------> (-∞,4]

so

[tex]x\leq 4[/tex]

All real numbers less than or equal to 4

Part 2) Find the range

Observing the graph

we know that

The range is the interval for y ------> [0,∞)

[tex]y\geq 0[/tex]

All real numbers greater than or equal to 0

Evaluate 3a2 + 2b when a = -4 and b = 6.

156


48


36


144


60

Answers

156

Explanation:

3 x -4 =-12

-12 x -12 = 144

2 x 6 = 12

12 + 144 =156

Answer:

60

E

Step-by-step explanation:

Givens

a = - 4

b = 6

Formula

3a^2 + 2b

Solution

3(-4)^2 + 2*6

3(16) + 12

48 + 12

Answer: 60

When is the mean most useful in describing a set of data?
when there is an outlier
when the range is wide
when the range is narrow
when there are two or more modes

Answers

Answer:

When the range is wide

Step-by-step explanation:

The mean is the most useful in describing a set of data when range is wide.

What is Mean?

Simply dividing the total number of values in a data set by the sum of all of the values yields it.

The mean can be used to provide a broad overview or overall impression of the data set. The optimal situation for using mean is when the data set's values are closely spaced.

When your data distribution is continuous and symmetrical, such as when your data are normally distributed, the mean is typically the best measure of central tendency to utilise.

Also, when the range is wide because it has high variability.

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What is the sum of the first 10 terms of the sequence defined by an=4n-3

A. 37

B. 190

C. 380

D. 384

Answers

The answer to this is:

B. 190

The sum of the first 10 terms of the sequence an=4n-3 is 190.

The question is asking for the sum of the first 10 terms of the sequence defined by an=4n-3. To find the sum, we first list the first 10 terms by substituting values of n from 1 to 10 into the formula. Thus, for n=1, a1=1(4)-3=4-3=1; for n=2, a2=2(4)-3=8-3=5; and so on until n=10, a10=10(4)-3=40-3=37.

The first ten terms of the sequence are: 1, 5, 9, 13, 17, 21, 25, 29, 33, and 37. The sum of these terms can be calculated as 1+5+9+13+17+21+25+29+33+37 = 190.

What lengths would allow you to calculate the volume of the oblique pyramid with a square base? Check all that apply. AB and EF AC, CB, and EF AC and EF AD, DB, and EF AD, DC, and EF

Answers

Answer:

A. AB and EF

B. AC, CB, and EF

D. AD, DB, and EF

Step-by-step explanation:

The lengths would help  you to calculate the volume of the oblique pyramid are:

AB and EF AC, CB, and EF. AD, DB, and EF

What is an Oblique pyramid?

An oblique pyramid is known to be a type of shape that is often known as 'right pyramid'.

Note that its shape is one that has the ap.ex "is shaped" to one side and as such the options that can best explain the volume of the oblique pyramid is the ones written above.

Learn more about oblique pyramid from

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A baker has 6 small bags of flour. Each bag weighs 1 pound. She divides each bag into thirds. How many 1/3 - pound bags of flour does the baker have? Show your work. Simplify if necessary.​

Answers

Answer:

18 smaller bags

Step-by-step explanation:

Each one pound bag becomes 3 one-third pound bags.

So 6 one pound bags will become 6×3=18 one-third pound bags.

Answer:

18 smaller bags

Step-by-step explanation:

The length of GJ is 18 inches.

What is the length of GL?


A. 6 in.

B. 9 in.

C. 18 in.

D. 36 in.

Answers

It would B. 9.

Reason to this is because the radius is outlined by line GL. GL is half of the diameter which is GJ.

The answer is B. 9 because GJ is the circumference of the circle and they’re basically asking you to find the radius and the radius is half the circumference and half of 18 is 9 so the answer would be B.

How do I solve using quadratic formula?

Answers

Answer:

Step-by-step explanation:

In elementary algebra, the quadratic formula is the solution of the quadratic equation. There are other ways to solve the quadratic equation instead of using the quadratic formula, such as factoring, completing the square, or graphing.

My bro is right good job

Greatest Common Factor 1
Find the Greatest Common Factor for each pair of numbers and order then from least (top) to greatest (bottom).

8 & 12
6 & 2
18 & 6
21 & 9

Answers

Answer:

6 & 2

21 & 9

8 & 12

18 & 6

Step-by-step explanation:

Sally’s dog boarding service currently has 2 Great Danes, 8 golden retrievers, 22 mastiffs, and 12 Doberman pinschers. What is that ratio of Doberman pinschers to the total number of dogs at Sally’s boarding service?

Answers

Answer:

3/11

Step-by-step explanation:

First, determine how many dogs are at the boarding service:

2+8+22+12 = 44

Then:

# of Dobermans          12

--------------------------  =  ------- = 6/22 or 3/ 11

     total # of dogs         44

The desired ratio is 3/11.

What is the circumference of a circle having a radius of 6cm?

Answers

Answer:

12cm.

Step-by-step explanation:

The radius is half of a circe.

6 * 2 = 12.

Answer:

37.68 cm

Step-by-step explanation:

the circumference of a circle  is :   P = 2π r

P= 2×3.14×6 =37.68 cm

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