Question

The length of a rectangle is 5 inches longer than it’s width. The area of the rectangle is 15 square inches. What are the length and width? Which equation models this problem?

a. 5 x w = 15
b. w(5+w) = 15
c. w + (5+w) = 15
d. w - (5+w) = 15

Answer 1

A = l*w

Given l = w + 5, A = 15:

w(5+w) = 15

The answer is b.