SOLUTION: If the length and width of a rectangle are each increased by ten percent, then the perimeter of the rectangle is increased by what percent?

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Question 298474: If the length and width of a rectangle are each increased by ten percent, then the perimeter of the rectangle is increased by what percent?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
If the length and width of a rectangle are each increased by ten percent, then the perimeter of the rectangle is increased by what percent?
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Perimeter = 2(L + W)
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New Perimeter = 2(1.1L + 1.1W)
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New Perimeter = 2(1.1)(L+W)
NP = 2.2(L+W) = 2(L+W) + 0.2(L+W)
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The increase is 0.20 = 20%
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Cheers,
Stan H.
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