what should the dimensions of the rectangular bed be?

Question

In a landscape plan, a rectangular flowerbed is designed to be 4 meters longer than it is wide. If 60 square meters are needed for the plants in the bed, what should the dimensions of the rectangular bed be?

 

Answer 1

L = 4 + w

Area = Lw = 60 m^2 = 4w +w^2

w^2 +4w -60 = 0

(w+10)(w-6) = 0

w = 6 m wide

L = 10 m Long