document.write( "Question 219166: The lenght of a rectangle is 3 time the width. The perimeter is 120m. Find the lenght and width \n" ); document.write( "
Algebra.Com's Answer #164887 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! L=3W \n" ); document.write( "2L+2W=120 \n" ); document.write( "2*3W+2W=120 \n" ); document.write( "6W+2W=120 \n" ); document.write( "8W=120 \n" ); document.write( "W=120/8 \n" ); document.write( "W=15 M. IS THE WIDTH. \n" ); document.write( "L=3*15=45 M. FOR THE LENGTH. \n" ); document.write( "pROOF: \n" ); document.write( "2*45+2*15=120 \n" ); document.write( "90+30=120 \n" ); document.write( "120=120 \n" ); document.write( " |