document.write( "Question 290505: The perimeter of a rectangle is 80 inches. The length of the rectangle is 8 less then three times the width. What are the dimensions of the rectangle? \n" ); document.write( "
Algebra.Com's Answer #210284 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
P=2L+2W
\n" ); document.write( "L=3W-8
\n" ); document.write( "80=2(3W-8)+2W
\n" ); document.write( "80=6W-16+2W
\n" ); document.write( "80=8W-16
\n" ); document.write( "8W=80+16
\n" ); document.write( "8W=96
\n" ); document.write( "W=96/8
\n" ); document.write( "W=12 ANS. FOR THE WIDTH.
\n" ); document.write( "L=3*12-8
\n" ); document.write( "L=36-8
\n" ); document.write( "L=28 ANS. FOR THE LENGTH.
\n" ); document.write( "PROOF:
\n" ); document.write( "80=2*28+2*12
\n" ); document.write( "80=56+24
\n" ); document.write( "80=80
\n" ); document.write( "
\n" ); document.write( "
\n" );