SOLUTION: A chemist has two solutions for HNO3. One has 40% of concentration and the other has 25% of concentration. How many liter of each solution must be mixed to obtain 147 liters of 39

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Question 851561: A chemist has two solutions for HNO3. One has 40% of concentration and the other has 25% of concentration. How many liter of each solution must be mixed to obtain 147 liters of 39% solution.

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
.4x+.25y=.39*147,
x+y=147
x=137.2, y=9.8
It stands to reason that it will be mostly the 40% solution since he wants 39%