Question

A photograph is 8 inches long and 6 inches wide. If it is enlarged to 12 inches long, how many inches wide will it be

steps

Answer 1

12/8 x/6
if you cross multiply and divide you get 9. It will be 9 inches wide

Answer 2

Answer: 9 inches

Explanation:

Since it is enlarged , the new shape is still similar to the former one. If two shapes are similar , then the ratio of their length will be equal.

Length of the original shape = 8 inches

width = 6 inches

Length of the new shape = 12 inches

Width = x inches

following the rule of similar shape , we have :

`(8)/(6)=(12)/(x)`

multiply both sides by
`(6)/(8)` , we have

`(8)/(6)((6)/(8)) = (12)/(x)((6)/(8))`

`1 = (72)/(8x)`

`8x = 72`

divide through by 8

`x = 9`