The length of a rectangular mailing label is 3 centimeters leas than twice the width. The perimeter is 24 centimeters. Find the dimensions of the label.

Answer 1

Perimeter = 2 * L + 2 * w , where L = 2w-3

24 = 2 * (2w-3) + 2w

24 = 4w - 6 + 2w

24 = 6w - 6

30 = 6w

w=5

the width is 5. the length is 2(5)-3 = 10-3=7