Question

A rectangle is four times as long as it is wide. If it has an area of 36 square inches, what are its dimension?. a. 6 by 6 c. 4 by 9 b. 3 by 12 d. 4 and 8 Please select the best answer from the choices provided A B C D

Answer 1

B. 3 by 12

Explanation:

`x(4x) = 36`

`4 {x}^(2) = 36`

`{x}^(2) = 9`

`x = 3`

`4x = 12`

So the length is 12 inches, and the width is 3 inches.