document.write( "Question 309709: im trying to figure out how to get The width of a rectangular feed lot is 8 m less
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document.write( "than the length. The area is 20 m squared . Find the length and
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document.write( "the width.\r
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document.write( "i thought it would be (8-m)((20-m)squared \n" );
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Algebra.Com's Answer #221502 by ankor@dixie-net.com(22740) You can put this solution on YOUR website! The width of a rectangular feed lot is 8 m less than the length. \n" ); document.write( " The area is 20 m squared . \n" ); document.write( " Find the length and the width. \n" ); document.write( ": \n" ); document.write( "\"The width of a rectangular feed lot is 8 m less than the length.\" \n" ); document.write( "W = (L-8) \n" ); document.write( ": \n" ); document.write( "L * W = 20 \n" ); document.write( "Replace W with (L-8), find L \n" ); document.write( "L * (L-8) = 20 \n" ); document.write( "A quadratic equation \n" ); document.write( "L^2 - 8L - 20 = 0 \n" ); document.write( "factors to \n" ); document.write( "(L-10)*L+2) = 0 \n" ); document.write( "The positive solution is what we want here \n" ); document.write( "L = 10 m is the length \n" ); document.write( "then \n" ); document.write( "W = 10 - 8 \n" ); document.write( "W = 2 m is the width \n" ); document.write( " |