document.write( "Question 896772: The length of a rectangle is three times its width.
\n" ); document.write( "If the perimeter of the rectangle is
\n" ); document.write( "80yd
\n" ); document.write( " , find its area.
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Algebra.Com's Answer #543809 by JulietG(1812)\"\" \"About 
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P = 80 (given)
\n" ); document.write( "L = 3W (given)
\n" ); document.write( "P = 2L + 2W
\n" ); document.write( "80 = 2L + 2W
\n" ); document.write( "80 = 2(3W) + 2W
\n" ); document.write( "80 = 6W + 2W
\n" ); document.write( "80 = 8W
\n" ); document.write( "10 = W
\n" ); document.write( "If the width is 10, then the length is 3x that, or 30.
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