document.write( "Question 252596: A rectangle is three times as long as it is wide. The perimeter is 40 feet. Find the width. \n" ); document.write( "
Algebra.Com's Answer #184603 by JimboP1977(311)\"\" \"About 
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l=length, w=width\r
\n" ); document.write( "\n" ); document.write( "3w=l\r
\n" ); document.write( "\n" ); document.write( "2w+2l=40\r
\n" ); document.write( "\n" ); document.write( "Subsitute in 3w for l gives 2w+6w=40, 8w=40, w = 5 feet.
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