document.write( "Question 565183: the width of a rectangle is 40 percent of the length. The perimeter of the rectangle is 42. Find the length and width of the rectangle. \n" ); document.write( "
Algebra.Com's Answer #365693 by ad_alta(240)\"\" \"About 
You can put this solution on YOUR website!
Let 'l' be the length and 'w' the width. Then w=0.4l and 2l+2w=42. Substituting, 2l+2(0.4l)=42. Therefore l=15 and w=6. \n" ); document.write( "
\n" );