Question

A rectangular rug has an area of 38.5 square feet. If the rug is 5 feet wide, what is the length of the rug?

Answer 1

10

Explanation:

80 = l(l - 2) = l2 - 2l. Solve the quadratic to find solutions l = 10 and l = -8. You can't have a negative side, so the length of the rectangle must be 10.

Answer 2

7.7 square feet

Explanation:

38.5 divided by 5, equals 7.7.

Hope this helps