SOLUTION: how many grams of pure acid (100% acid) and how many grams of a 40% solution should be mixed together to get a total of 30 gram of a 60% solution?

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Question 976380: how many grams of pure acid (100% acid) and how many grams of a 40% solution should be mixed together to get a total of 30 gram of a 60% solution?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
m, the mass of the pure acid
(30-m), the mass of the 40% acid


%28m%2A100%2B%2830-m%29%2A40%29%2F30=60