SOLUTION: Find the dimension of a rectangular Persian rug whose perimeter is 18 ft. and whose area is 20 ft^2? what are the length and width?

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Question 568692: Find the dimension of a rectangular Persian rug whose perimeter is 18 ft. and whose area is 20 ft^2?
what are the length and width?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Find the dimension of a rectangular Persian rug whose perimeter is 18 ft. and whose area is 20 ft^2?
what are the length and width?
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Perimeter = 2(L + W)
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L+W = 9
LW = 20
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L = 9-W
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Substitute for "L" and solve for "W":
(9-W)W = 20
-W^2+9W = 20
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W^2-9W+20 = 0
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(W-5)(W-4) = 0
If W = 5, L = 4
If W = 4, L = 5
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Cheers,
Stan H.
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