Question

Suppose you are using a photocopier to reduce the size of a picture that is 10 inches wide by 12 inches long. If you reduce the picture so that it is 9 inches wide, how long will it be?

Answer 1

10/12 = 9/x

Explanation:

Answer 2

10.8 inches long

Explanation:

We can determine the width to length ration by dividing 10 inches by 12 inches:

`=10/12=5/6`

For every 5 inches wide the paper is 6 inches in length. If the picture is reduced to 9 inches in width, we can calculate the length by taking the inverse of 5/6 which is 6/5 and multiplying by 9 inches:

`=(6/5)\cdot{9}=10.8`

the paper is 10.8 inches long