Question

A rectangle had a perimeter of 48 inches. The length is 4 inches longer than the width. What's the width?

Answer 1

Width = 10 inches.

Explanation:

`P_"rectangle"=2l+2w`

`l=w+4`

`P=48`

Substute into formula:

`48=2(w+4)+2w`

`48=2w+8+2w`

`48=4w+8`

`40=4w`

`w=10`