document.write( "Question 349769: The length of a rectangle is 4 feet more three times its width. Find the largest possible width if the perimeter is no more than 80 feet. \n" ); document.write( "
Algebra.Com's Answer #249992 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! L=3W+4 \n" ); document.write( "2L+2W<=80 \n" ); document.write( "2(3W+4)+2W<=80 \n" ); document.write( "6W+8+2W<=80 \n" ); document.write( "8W<=80-8 \n" ); document.write( "8W<=72 \n" ); document.write( "W<=72/8 \n" ); document.write( "W<=9 ANS. FOR THE WIDTH. \n" ); document.write( "L=3*9+4=27+4=31 ANS. FOR THE LENGTH. \n" ); document.write( "PROOF: \n" ); document.write( "2*31+2*9<=80 \n" ); document.write( "62+18<=80 \n" ); document.write( "80<=80 \n" ); document.write( " |