document.write( "Question 163860: The length of a rectangle is 3 m longer than its width. If the perimeter of the rectangle is 38 m find its area \n" ); document.write( "
Algebra.Com's Answer #120704 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! Let x = width \n" ); document.write( "then because \"length of a rectangle is 3 m longer than its width\" \n" ); document.write( "x+3 = length \n" ); document.write( ". \n" ); document.write( "Perimeter of any rectangle: \n" ); document.write( "2(width + length) \n" ); document.write( ". \n" ); document.write( "so: \n" ); document.write( "38 = 2(x + x+3) \n" ); document.write( "38 = 2(2x+3) \n" ); document.write( "38 = 4x+6 \n" ); document.write( "32 = 4x \n" ); document.write( "8 m = x (width) \n" ); document.write( ". \n" ); document.write( "length: \n" ); document.write( "x+3 = 8+3 = 11 m (length) \n" ); document.write( ". \n" ); document.write( "Area of any rectangle: \n" ); document.write( "width * length = 8 * 11 = 88 square meters (answer)\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |