The length of a rectangle is 9 feet longer than twice the width. If the perimeter is 90 feet, find the length and width of the rectangle?

1 answer

P = 2L + 2W

90 = 2(2W + 9) + 2W

90 = 6W + 18

90 - 18 = 6W

72 = 6W

12 = W

24 + 9 = L