document.write( "Question 654940: the length of a rectangular field is 10 meters less than 9 times the width. the perimeter is 140 meters. find the length.
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Algebra.Com's Answer #408874 by checkley79(3341)![]() ![]() ![]() You can put this solution on YOUR website! L=9W-10 \n" ); document.write( "2L+2W=140 \n" ); document.write( "2(9W-10)+2W=140 \n" ); document.write( "18W-20+2W=140 \n" ); document.write( "20W=140+20 \n" ); document.write( "20W=160 \n" ); document.write( "W=160/20 \n" ); document.write( "W=8 ANS. FOR THE WIDTH. \n" ); document.write( "L=9*8-10 \n" ); document.write( "L=72-10 \n" ); document.write( "L=62 ANS FOR THE LENGTH. \n" ); document.write( "PROOF: \n" ); document.write( "2*62+2*8=140 \n" ); document.write( "124+16=140 \n" ); document.write( "140=140 \n" ); document.write( " |