document.write( "Question 371646: A rectangle is twice as long as it is wide. If its length and width are each reduced by 1 inch, the area of the rectangle is reduced by 14 square inches. Find the dimensions of the original rectangle. \n" ); document.write( "
Algebra.Com's Answer #264710 by amoresroy(361)![]() ![]() You can put this solution on YOUR website! A rectangle is twice as long as it is wide. If its length and width are each reduced by 1 inch, the area of the rectangle is reduced by 14 square inches. Find the dimensions of the original rectangle.\r \n" ); document.write( "\n" ); document.write( "Let x = the width of the rectangle \n" ); document.write( " 2x = the length of the rectangle\r \n" ); document.write( "\n" ); document.write( "(x-1)(2x-1) = x(2x) - 14\r \n" ); document.write( "\n" ); document.write( "Solve for x \n" ); document.write( "2x^2-x-2x+1 = 2x^2 -14 \n" ); document.write( "Combine like terms \n" ); document.write( " -3x = -15 \n" ); document.write( " x = 5 \n" ); document.write( " 2x = 10\r \n" ); document.write( "\n" ); document.write( "The dimensions of the original rectabngle are \n" ); document.write( "width = 5 inches \n" ); document.write( "length= 10 inches \n" ); document.write( " |