document.write( "Question 536693: Find the dimensions of a rectangle whose width is 6 miles less than its length, and whose area is 91 square miles \n" ); document.write( "
Algebra.Com's Answer #352537 by mananth(16946)![]() ![]() You can put this solution on YOUR website! Area = 91 sq. miles \n" ); document.write( "Length = x miles \n" ); document.write( "Width = x -6 \n" ); document.write( "Area = x * (x -6) \n" ); document.write( "91 = x^2 -6x \n" ); document.write( "x^2 -6 x -91 = 0 \r \n" ); document.write( "\n" ); document.write( "x^2-13x+7x-91=0 \n" ); document.write( "x(x-13)+7(x-13)=0 \n" ); document.write( "(x-13)(x+7)=0 \n" ); document.write( "x= 13 OR -7\r \n" ); document.write( "\n" ); document.write( "Ignore negative value \n" ); document.write( "Length =13 & width = 7miles \n" ); document.write( " \n" ); document.write( " |