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)![]() ![]() ![]() 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( " |