The length of a rectangle is 3.5 inches more tan its width. The perimeter of the rectangle is 31 inches. Find the length and the width of the rectangle. Explain

Length (L) : w + 3.5

width (w) : w

Perimeter (P) = 2L + 2w

31 = 2 (w + 3.5) + 2 (w)

31 = 2w + 7 + 2w

31 = 4w + 7

24 = 4w

6 = w

Length (L) : w + 3.5 = (6) + 3.5 = 9.5

Answer: width = 6 inches, length = 9.5 inches