Question

The perimeter of a rectangle is 50 feet. The width is 5 feet longer than the length. Write and solve an equation to find the length of the rectangle

Answer 1

The length is 10 feet.

Explanation:

The formula for the perimeter of a rectangle is 2(l + w) = P. If the perimeter is 50 and the width is 5 feet more than the length, the equation can be written as 2( (l + 5) + l) = 50, or 2(2l + 5) = 50. You can then solve for l.

2(2l + 5) = 50

2l + 5 = 25

2l = 20

l = 10