Problema Solution
The width of a rectangle is 1ft less than the length. The area is 30ft^2. Find the length and width
Answer provided by our tutors
let
l = the length of the rectangle, l>0
w = the width of the rectangle, w>0
the width of a rectangle is 1ft less than the length
w = l - 1
the area is 30 ft^2
l*w = 30
plug w = l - 1 into the last equation
l*(l - 1) = 30
by solving we find
l = 6 ft
click here to see the step by step solution of the quadratic equation
w = 6 - 1
w = 5 ft
the length is 6 ft and the width is 5 ft.