Problema Solution
Jim built a rectangular shed with a total floor-surface area of 126 sq feet. If the length is 4 more feet than twice its width, what is the length of the shed?
Answer provided by our tutors
let
A = 126 ft^2 the area of the shed
l = the length, l>0
w = the width, w>0
the length is 4 more feet than twice its width:
l = 4 + 2w
the area A = l*w thus
l*w = 126
plug l = 4 + 2w into the last equation:
(4 + 2w)*w = 126
by solving we find:
w = 7 ft
click here to see the step by step solution of the equation:
l = 4 + 2*7
l = 18 ft
the length of the shed is 18 feet.