document.write( "Question 103359: The length of a rectangular playing field is 5 ft less than twice its width. If the perimeter of the playing field is 230 ft, find the length and width of the field. \n" ); document.write( "
Algebra.Com's Answer #75173 by checkley75(3666)\"\" \"About 
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L=2W-5 IS THE LENGTH
\n" ); document.write( "W=WIDTH
\n" ); document.write( "2(2W-5)+2W=230
\n" ); document.write( "4W-10+2W=230
\n" ); document.write( "6W=230+10
\n" ); document.write( "6W=240
\n" ); document.write( "W=240/6
\n" ); document.write( "W=40 FT. IS THE WIDTH.
\n" ); document.write( "L=2*40-5=80-5=75 FOR THE LENGTH.
\n" ); document.write( "PROOF
\n" ); document.write( "2*75+2*40=230
\n" ); document.write( "150+80=230
\n" ); document.write( "230=230
\n" ); document.write( "
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