SOLUTION: A farmer has fertilizer in 5% and 15% solutions. How much of each type should he mix to obtain 100 liters of fertilizer in a 12% solution?

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Question 1132942: A farmer has fertilizer in 5% and 15% solutions. How much of each type should he mix to obtain 100 liters of fertilizer in a 12% solution?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
x liters of the 15% fertilizer

15x%2B5%28100-x%29=12%2A100
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