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OpenStudy (anonymous):
9) A rectangle has a length that is 5 feet more than its width. The area of this rectangle is 84 square feet. What is the width and length of this rectangle?
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OpenStudy (anonymous):
let width be x so length will be x + 5 area = x(x+5) = 84 x^2 + 5x = 84 solve for x
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