document.write( "Question 301091: A rectangular blanket is 20 inches longer than it is wide. If the area of the blanket is 1,125 square inches, find the length and the width. Show all. \n" ); document.write( "
Algebra.Com's Answer #215907 by mananth(16946)![]() ![]() You can put this solution on YOUR website! let the width be x\r \n" ); document.write( "\n" ); document.write( "length = x+20\r \n" ); document.write( "\n" ); document.write( "x(x+20) = 1125\r \n" ); document.write( "\n" ); document.write( "x^2+20x-1125=0\r \n" ); document.write( "\n" ); document.write( "x^2+45x-25x=1125\r \n" ); document.write( "\n" ); document.write( "x(x+45)-25(x+45)=0\r \n" ); document.write( "\n" ); document.write( "(x+45)(x-25)=0\r \n" ); document.write( "\n" ); document.write( "x=-45 or x=25\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So width = 25\r \n" ); document.write( "\n" ); document.write( "and length = 20+25 = 45\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |