document.write( "Question 461704: A solution of 53% pesticide is to be mixed with a solution of 21% pesticide to form 128 liters of a 40% solution. How many liters of the 53% solution must be used? \n" ); document.write( "
Algebra.Com's Answer #318575 by jorel1380(3719)![]() ![]() You can put this solution on YOUR website! 128x.4=51.2 \n" ); document.write( "p+q=128 \n" ); document.write( ".53p+.21q=51.2 \n" ); document.write( "53p+21q=5120 \n" ); document.write( "21p+21q=2688 \n" ); document.write( "32p=2432 \n" ); document.write( "p=76 \n" ); document.write( "q=52 \n" ); document.write( "You need 76 liters of 53% solution and 52 liters of 21% solution.. \n" ); document.write( " |