document.write( "Question 912664: the perimeter of a rectangle is 106 cm. If the length is 7 cm less than three times the width, what are the dimensions? \n" ); document.write( "
Algebra.Com's Answer #553996 by JulietG(1812)![]() ![]() You can put this solution on YOUR website! perimeter = 2length + 2width \n" ); document.write( "106 = 2(3w-7) + 2w \n" ); document.write( "106 = 6w-14 +2w \n" ); document.write( "106 = 8w-14 \n" ); document.write( "120 = 8w \n" ); document.write( "15 = w \n" ); document.write( "l = 3*15 - 7 \n" ); document.write( "l = 45-7 \n" ); document.write( "l = 38 \n" ); document.write( "106 = 38 + 38 + 15 + 15 \n" ); document.write( "106 = 76 + 30 \n" ); document.write( "106 = 106 \n" ); document.write( " |