SOLUTION: A large rectangular movie screen in an IMAX theater has an area of 9,844 square feet. Find the dimensions of the screen if it is 15 feet longer than it is wide.
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Question 898319: A large rectangular movie screen in an IMAX theater has an area of 9,844 square feet. Find the dimensions of the screen if it is 15 feet longer than it is wide. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A large rectangular movie screen in an IMAX theater has an area of 9,844 square feet. Find the dimensions of the screen if it is 15 feet longer than it is wide
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Let width = w
Then length = (w+15)
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Equation:
w(w+15) = 9844
w^2 + 15w - 9844 = 0
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(w-107)(w+92) = 0
Positive solution:
Ans: w = 107 ft (width)
length = w + 15 = 122 ft (length)
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Cheers,
Stan H.
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