document.write( "Question 204103: The width of a rectangle is 15ft. less that its length, and the perimeter is 210 ft. Find the width? \n" ); document.write( "
Algebra.Com's Answer #154051 by RAY100(1637)\"\" \"About 
You can put this solution on YOUR website!
Perimeter =210 =2l +2w,,,but w=l-15,,,
\n" ); document.write( ".
\n" ); document.write( "210 = 2l +2(l-15)
\n" ); document.write( ".
\n" ); document.write( "210 =2l + 2l -30
\n" ); document.write( ".
\n" ); document.write( "240 = 4l
\n" ); document.write( ".
\n" ); document.write( "60 = l,,,,,w= l-15 =60-15 = 45
\n" ); document.write( ".
\n" ); document.write( "check per=210= 2*60 +2*45 = 120 +90,,,,,,ok
\n" ); document.write( "
\n" ); document.write( "
\n" );