document.write( "Question 698600: The perimeter of a rectangular field is 480 meters and the area is 10,800 meters squared. Find the dimensions\r
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document.write( "Can you please help me with this question? Thanks so much in advance :) \n" );
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Algebra.Com's Answer #430979 by sofiyac(983)![]() ![]() You can put this solution on YOUR website! Let's use 2 equations for this, L is Length and W is Width: \n" ); document.write( " 2L+2W=480 \n" ); document.write( " L(W)=10800 rewritten as: L=10800/W \n" ); document.write( " Use substitution for this: \n" ); document.write( " 2(10800/W)+2W=480 or rewritten as: 21600/W+2W=480 \n" ); document.write( " Multiply by W: \n" ); document.write( " 21600+2w^2=480W\r \n" ); document.write( "\n" ); document.write( " \r \n" ); document.write( "\n" ); document.write( "Divide by 2 and subtract 240W: \n" ); document.write( " W^2 -240W +10800 =0 \n" ); document.write( " Factor: \n" ); document.write( " (W-180)(W-60) \n" ); document.write( " Solve for W \n" ); document.write( " Width=60 meters \n" ); document.write( " Length=180 meters \n" ); document.write( " \n" ); document.write( " |