document.write( "Question 499482: how many gallons of 50% antifreeze solution must be mixed with 80 gallons of 15% anifreeze to get a mixture that is 40% anitfreeze? \n" ); document.write( "
Algebra.Com's Answer #337723 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! how many gallons of 50% antifreeze solution must be mixed with 80 gallons of 15% anifreeze to get a mixture that is 40% anitfreeze? \n" ); document.write( ". \n" ); document.write( "Let x = amount (gallons) of 50% antifreeze \n" ); document.write( "then \n" ); document.write( ".50x + .15(80) = .40(x + 80) \n" ); document.write( ".50x + 12 = .40x + 32 \n" ); document.write( ".10x + 12 = 32 \n" ); document.write( ".10x = 20 \n" ); document.write( "x = 200 gallons \n" ); document.write( " \n" ); document.write( " |