Question

The perimeter of a rectangular pig pen of 136 meters. If the length is 5 meters more than twice the width, what is the length and width of the pig pen?

Answer 1

Length (L): 2w + 5

width (w): w

Perimeter (P) = 2L + 2w

136 = 2(2w + 5) + 2(w)

136 = 4w + 10 + 2w

136 = 6w + 10

126 = 6w

21 = w

Length (L): 2w + 5 = 2(21) + 5 = 42 + 5 = 47

Answer: width = 21 meters, length = 47 meters