Problema Solution
The length of a rectangular banner is 3 feet longer than its width. If the area is 88 squares feet, find the dimensions
Answer provided by our tutors
let
w = the with of the rectangular banner
l = the length of the rectangular banner
the length of a rectangular banner is 3 feet longer than its width
l = 3 + w
the area is 88 ft^2
l*w = 88
plug l = 3 + w into the last equation
(3 + w)w = 88
by solving the equation we find and consider the positive roots only
w = 8 ft
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l = 3 + 8
l = 11 ft
the dimensions are 8 ft and 11 ft.