document.write( "Question 352291: a rectangle is three times as long as it is wide. If the perimeter is 104 feet, what are the length and width \n" ); document.write( "
Algebra.Com's Answer #251787 by checkley77(12844)\"\" \"About 
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L=3W
\n" ); document.write( "2L+2W=104
\n" ); document.write( "2*3W+2W=104
\n" ); document.write( "6W+2W=104
\n" ); document.write( "8W=104
\n" ); document.write( "W=104/8
\n" ); document.write( "W=13 FT. ANS. FOR THE WIDTH.
\n" ); document.write( "L=3*13=39 FT ANS. FOR THE LENGTH.
\n" ); document.write( "PROOF:
\n" ); document.write( "2*39+2*13=104
\n" ); document.write( "78+26=104
\n" ); document.write( "104=104
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