SOLUTION: How many liters of a 70% acid solution must be mixed with a 25% acid solution to get 315 L of a 60% acid solution?

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Question 1006017: How many liters of a 70% acid solution must be mixed with a 25% acid solution to get 315 L of a 60% acid solution?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Same method as demonstrated in this example:
Using one variable for a two-part mixture