Problema Solution
a large rectangular movie screen in an Imax theater has an area of 9504sq feet.Find the dimension of the screen if it is 20 feet longer than it is wide
Answer provided by our tutors
let
w = the width of the screen, l>0
l = the length of the screen, w>0
the area of the screen is 9504 ft^2
w*l = 9504
the screen is 20 feet longer than it is wide
l = w + 20
plug l = w + 20 into w*l = 9504
w(w + 20) = 9504
by solving the equation we find
w = 88 ft
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l = 88 + 20
l = 108 ft
the dimensions of the screen are 108 ft and 88 ft.