3 years ago

alyssa had 189 dollars to spend on 8 books. after buying them she had 13 dollars. how much did each book cost

1 answer:

8 0

If you divide 189 by 8 you would get 23.625 but first you have to subtract 13 from 189 (176) then divide it (22) the answer is 22 dollars

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liberstina [14]

Write them out as a fraction then reduce them. If theyre the same then its proportional.

25/45 can be cancelled down to 5/9

15/27 can be cancelled down to 3/9

So no theyre not.

6 0

2 years ago

Find the common difference if the 8th term is 55 and the first term is 13

Vlad [161]

Answer:

Step-by-step explanation:

Equation

L = a + (n - 1)*d

Givens

L = 55

a = 13

n =8

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55 = 13 + (8 - 1)*d Combine

55 = 13 + 7d Subtract 13 from both sides

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2 years ago

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3 years ago

Kerry has a job that pays $1,954 biweekly. How much is withheld annually for Social Security?

Alexandra [31]

Answer:

Step-by-step explanation:

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2 years ago

Which sphere has a volume of 0.288Pi in.3? A sphere with radius 0.4 inches. A sphere with radius 0.5 inches. A sphere with radiu

worty [1.4K]

C. A sphere with radius 0.6 inches.

Here is why:

The equation for the volume of a sphere is:

$V=\frac{4}{3} \pi r^3$

We can plug in and solve.

$V=\frac{4}{3}*\pi *0.6*0.6*0.6$

We will multiply everything but leave the 3 to divide later.

So...

$4*\pi *0.6*0.6*0.6=0.864\pi$

Divide by 3.

$0.864\pi /3=$

0.288π

5 0

2 years ago

Read 2 more answers