document.write( "Question 62998: The length of a rectangular playing field is 5 ft less than twice its width.
\n" ); document.write( "If the perimeter of the playing field is 230 ft, find the length and width of the field.
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Algebra.Com's Answer #43908 by checkley71(8403)\"\" \"About 
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2L+2W=P
\n" ); document.write( "L=2W-5
\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 SOLUTION
\n" ); document.write( "L=2*40-5
\n" ); document.write( "L=80-5
\n" ); document.write( "L=75 SOLUTION
\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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