A chemist has three different acid solutions. The first acid solution contains 20% acid, the second contains 40% and the third contains 85 %. They want to use all three solutions to obtain a mixture of 72 liters containing 45% acid, using 2 times as much of the 85 % solution as the 40% solution. How many liters of each solution should be used? The chemist should use solution, and liters of 20% solution, liters of 85% solution. liters of 40% Jolene invests her savings in two bank accounts, one paying 5 percent and the other paying 11 percent simple interest per year. She puts twice as much in the lower-yielding account because it is less risky. Her annual interest is 2814 dollars. How much did she invest at each rate? Amount invested at 5 percent interest is $ Amount invested at 11 percent interest is $