Question

39 ft.². The length should be 10 feet more than its width. What should the dimensions of

the deck be?

Answer 1

13 x 3 ft

Explanation:

RECTANGULAR deck

L x W = 39 ft^2

(w+10) x w = 39

w^2 + 10w - 39 = 0

(w-3)(w+13) = 0 w = 3 or -13 (throw out)

w = 3 then l = 10 +3 = 13