document.write( "Question 348019: The perimeter of a rectangle equals one and a half times its area. Express the length of the rectangle in terms of the width (use variable \"w\" for width). \n" ); document.write( "
Algebra.Com's Answer #248839 by nerdybill(7384) You can put this solution on YOUR website! The perimeter of a rectangle equals one and a half times its area. Express the length of the rectangle in terms of the width (use variable \"w\" for width) \n" ); document.write( ". \n" ); document.write( "Area of any rectangle = width * length \n" ); document.write( "Perimeter of any rectangle = 2(width+length) \n" ); document.write( ". \n" ); document.write( "Let w = width \n" ); document.write( "and temporarily \n" ); document.write( "x = length \n" ); document.write( ". \n" ); document.write( "From the problem, perimeter is: \n" ); document.write( "1.5wx \n" ); document.write( ". \n" ); document.write( "But, \n" ); document.write( "Perimeter = 2(w+x) \n" ); document.write( "So, then we have \n" ); document.write( "1.5wx = 2(w+x) \n" ); document.write( "Solving for x: \n" ); document.write( "1.5wx = 2(w+x) \n" ); document.write( "1.5wx = 2w+2x \n" ); document.write( "1.5wx-2x = 2w \n" ); document.write( "factoring the left: \n" ); document.write( "x(1.5w-2) = 2w \n" ); document.write( "x = 2w/(1.5w-2) \n" ); document.write( ". \n" ); document.write( "So, your answer would be \n" ); document.write( "length is equal to: \n" ); document.write( "2w/(1.5w-2) \n" ); document.write( " |