document.write( "Question 311521: The area of a rectangle wall of a barn is 189 sq feet. Its length is 12 feet longer than the width. Find the length and width of the wall of the barn. \r
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Algebra.Com's Answer #222886 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! L=W+12 \n" ); document.write( "189=LW \n" ); document.write( "189=(W+12)W \n" ); document.write( "189=W^2+12W \n" ); document.write( "W^2+12W-189=0 \n" ); document.write( "(W-9)(W+21)=0 \n" ); document.write( "W-9=0 \n" ); document.write( "W=9 ANS. FOR THE WIDTH \n" ); document.write( "L=9+12=21 ANS. FOR THE LENGTH. \n" ); document.write( "PROOF: \n" ); document.write( "189=9*21 \n" ); document.write( "189=189 \n" ); document.write( " |