document.write( "Question 70730: The length of a rectangular playing field is 5 ft less than twice its width.
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document.write( "If the perimeter of the playing field is 230 ft, find the length and width of the field. \n" );
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Algebra.Com's Answer #50488 by checkley75(3666)![]() ![]() ![]() You can put this solution on YOUR website! L=(2W-5) THEN 2W+2L=230 \n" ); document.write( "2W+2(2W-5)=230 \n" ); document.write( "2W+4W-10=230 \n" ); document.write( "6W=230+10 \n" ); document.write( "6W=240 \n" ); document.write( "W=240/6 \n" ); document.write( "W=40 FT. \n" ); document.write( "L=2*40-5 \n" ); document.write( "L=80-5 \n" ); document.write( "L=75 FT. \n" ); document.write( "PROOF \n" ); document.write( "2*40+2*75=230 \n" ); document.write( "80+150=230 \n" ); document.write( "230=230 \n" ); document.write( " |