document.write( "Question 59345: 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 #40814 by pvaka(23)\"\" \"About 
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P=2L+2W
\n" ); document.write( "L=x,W=y
\n" ); document.write( "x=2y-5, P=230
\n" ); document.write( "--------------------------------------
\n" ); document.write( "2x+2y=230,x=2y-5>>(Substitute 2y-5 for x)
\n" ); document.write( "2(2y-5)+2y=230
\n" ); document.write( "4y-10+2y=230
\n" ); document.write( "6y-10+10=230+10
\n" ); document.write( "6y=240
\n" ); document.write( "6y/6=240/6
\n" ); document.write( "y=40
\n" ); document.write( "x=2y-5
\n" ); document.write( "x=2(40)-5
\n" ); document.write( "x=80-5
\n" ); document.write( "x=75
\n" ); document.write( "Length=75 feet,width=40 ft\r
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