document.write( "Question 177185: The length of a rectangle is twice its width. If the perimeter of the rectangle is 30ft, find its area \n" ); document.write( "
Algebra.Com's Answer #132227 by stanbon(75887)\"\" \"About 
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The length of a rectangle is twice its width. If the perimeter of the rectangle is 30ft, find its area
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\n" ); document.write( "Perimeter = 2(L+W) = 30
\n" ); document.write( "L + W= 15
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\n" ); document.write( "But L = 2W, so substitute to get:
\n" ); document.write( "2W + W = 15
\n" ); document.write( "3W = 15
\n" ); document.write( "W = 5
\n" ); document.write( "L = 2W = 10
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\n" ); document.write( "Area = LW = 10*5 = 50 sq. ft.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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