Question

The width of a rectangle is

3

inches less than the length. The perimeter is

54

inches. Find the length and the width.

please help asap!!!

Answer 1

let length be x

b = x - 3

perimeter = 2( l + b)

54 = 2(x+x-3)

27 = 2x - 3

30 = 2x

x = 15

l = 15

b = 15 - 3

b = 12