document.write( "Question 77647: The width of a rectangle is 7 ft less than the length. The area of the rectangle is 120 ft2(square). Find the width of the rectangle. \n" ); document.write( "
Algebra.Com's Answer #55696 by prabhjyot(165)![]() ![]() ![]() You can put this solution on YOUR website! The width of a rectangle is 7 ft less than the length. The area of the rectangle is 120 ft2(square). Find the width of the rectangle.\r \n" ); document.write( "\n" ); document.write( "If we let the length = L\r \n" ); document.write( "\n" ); document.write( "Then, the width, or w, will be L-7\r \n" ); document.write( "\n" ); document.write( "We know that the area of a rectangle is length times width.\r \n" ); document.write( "\n" ); document.write( "So, L(L-7)=120\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(L-15)(L+8) \r \n" ); document.write( "\n" ); document.write( "So, L=15,-8 length can't be negative, so L=15 \n" ); document.write( "So width w=L-7=15-7=8 \n" ); document.write( "So width of the rectangle is 8 ft. \n" ); document.write( " \n" ); document.write( " |