document.write( "Question 60959: The width of a retangle is 15 feet less than its length, and the perimeter is 210 feet. Can you show me how to find the width and the length. \n" ); document.write( "
Algebra.Com's Answer #41930 by checkley71(8403)\"\" \"About 
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W=L-15
\n" ); document.write( "P=2L+2W
\n" ); document.write( "210=2L+2(L-15)
\n" ); document.write( "210=2L+2L-30
\n" ); document.write( "4L=210+30
\n" ); document.write( "4L=240
\n" ); document.write( "L=240/4
\n" ); document.write( "L=60 THEN
\n" ); document.write( "W=60-15
\n" ); document.write( "W=45
\n" ); document.write( "PROOF
\n" ); document.write( "210=2*60+2*45
\n" ); document.write( "210=120+90
\n" ); document.write( "210=210
\n" ); document.write( "
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