document.write( "Question 111331: The width of a rectangle is 6km less than twice its length. If its area is 216km, find the dimensions of the rectangle. \r
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document.write( "Here's what I came up with:\r
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document.write( "2x-6=216
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document.write( "2x-6+6=216+6
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document.write( "2x=222
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document.write( "x=111\r
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document.write( "I'm not sure about this. word problems stump me sometimes. \n" );
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Algebra.Com's Answer #81207 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! let x=length, so 2x-6=width ___ (x)(2x-6)=216 ___ 2x^2-6x=216 ___ x^2-3x-108=0\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(x-12)(x+9)=0 \n" ); document.write( " |