SOLUTION: if the area of a rectangle is 6720 square feet and the ratio of the width to the length is 7:15, what are the length and width?

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Question 285608: if the area of a rectangle is 6720 square feet and the ratio of the width to the length is 7:15, what are the length and width?
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
if the area of a rectangle is 6720 square feet and the ratio of the width to the length is 7:15, what are the length and width?
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7:15 is the same as 7x:15x
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Equation:
LW = 6750
(7x)(15x) = 105x^2
---
105x^2 = 6750
x^2 = 64.29
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x = 8.02
--
7x = 56.12 (width)
15x = 120.27 (length)
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Cheers,
Stan H.

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