document.write( "Question 1040574: If the length of a rectangular parking lot is ten meters less than twice its width and the perimeter is 400 meters, find the length of the parking lot \n" ); document.write( "

Algebra.Com's Answer #655418 by ikleyn(52781) $\"\"$ $\"About$

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\n" ); document.write( "If the length of a rectangular parking lot is ten meters less than twice its width and the perimeter is 400 meters, find the length of the parking lot
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document.write( "Let W be the width of the parking lot.\r\n" );
document.write( "Then its length is (2W-10) meters, according to the solution.\r\n" );
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document.write( "Next, you have this equation for the perimeter:\r\n" );
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document.write( "w + (2W-10) + W + (2W-10) = 400   or\r\n" );
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document.write( "6W - 20 = 400,\r\n" );
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document.write( "6W = 400 + 20 = 420,\r\n" );
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document.write( "W =  = 70 meters is the width.\r\n" );
document.write( "Then the length is 2*70-10 = 130 meters.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved. The dimensions are 130 m and 70 m.\r
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