document.write( "Question 481501: The area of a rectangular wall in a classroom is 264 square feet. Its length is 9 feet shorter than three times its width. Find the length and width of the wall of the classroom. \n" ); document.write( "
Algebra.Com's Answer #329690 by jorel1380(3719)![]() ![]() You can put this solution on YOUR website! wX(3w-9)=264 \n" ); document.write( "3w2-9w-264=0 \n" ); document.write( "w2-3w-88=0 \n" ); document.write( "(w-11)(w+8)=0 \n" ); document.write( "w=11 or -8 \n" ); document.write( "Throwing out the negative answer, we get the width of the wall to be 11 feet, and the length to be 24.. \n" ); document.write( " |