document.write( "Question 599818: The length of a rectangle is three times its width.
\n" ); document.write( "If the area of the rectangle is 300 , find its perimeter.
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Algebra.Com's Answer #379122 by malibadbad(1)\"\" \"About 
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A=300
\n" ); document.write( "A=LxW
\n" ); document.write( "A=30x10\r
\n" ); document.write( "\n" ); document.write( "Therfore:
\n" ); document.write( "P=2L+2W
\n" ); document.write( "P=2(30)+2(10)
\n" ); document.write( "P=60+20
\n" ); document.write( "P=80
\n" ); document.write( "The perimeter is 80 (units)
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