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 $

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Chapter9: Standard Costing: A Functional-based Control Approach
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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 $
Transcribed Image Text: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 $
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
liters of 20 % solution,
liters of 40 %
solution, and
liters of 85 % solution.
Transcribed Image Text: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 liters of 20 % solution, liters of 40 % solution, and liters of 85 % solution.
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