The length of a rectangle is 3 cm greater than its width. the perimeter is 25 cm. what are the dimensions of the rectangle?

P = 2 (L + W)

P = 25

L = W + 3

now we sub and solve

25 = 2 (W + 3 + W)

25 = 2 (2W + 3)

25 = 4W + 6

25 - 6 = 4W

19 = 4W

19/4 = W

4.75 = W < = = width = 4.75 cm (or 4 3/4 cm)

L = W + 3

L = 4.75 + 3

L = 7.75 < = = length = 7.75 cm (or 7 3/4 cm)