Question

The length of a rectangle is 3 inches more than it’s width if the perimeter is 42 inches find the dimensions of the rectangle

Answer 1

Answer:

L = 12

W = 9

Step-by-step explanation:

P = 2L + 2W

42 = 2 (W + 3) + 2W

42 = 2W + 6 + 2W

42 = 4W + 6

- 6.          -6

36 = 4W

divide both sides by 4

36/4 = W

9 = W

L = 9 + 3 = 12