Question

The length of a rectangle is 7 centimeters greater than the width.

The perimeter is 54 centimeters. Find the length and width.

Answer 1

length = 17cm, width = 10cm

Explanation:

2L + 2w = 54

L = w + 7

Substitute:

2(w + 7) + 2w = 54

2w + 14 + 2w = 54

4w = 40

w = 10

L = 10 + 7 = 17