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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?

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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4 votes
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?

asked
User Jadine
by
8.2k points

1 Answer

2 votes
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

answered
User Cgogolin
by
8.7k points
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