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Lisa is planning to build a rectangular deck that is 10 feet longer than it is wide. Find its width if its area is 375 square feet. Which equation models this problem?
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Lisa is planning to build a rectangular deck that is 10 feet longer than it is wide. Find its width if its area is 375 square feet. Which equation models this problem?

User Jadine
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1 Answer

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If w = width, then length = w+10, then the area is given by

lw = A or
(w+10)(w) = A or
(w+10)(w) = 375 or
w² + 10w = 375

User Cgogolin
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