SOLUTION: how many liters of a 90% acid solution must be mixed with a 30% acid solution to get 600l of a 80% acid solution

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Question 830666: how many liters of a 90% acid solution must be mixed with a 30% acid solution to get 600l of a 80% acid solution
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
%2830u%2B90v%29%2F600=80 and u%2Bv=600.

How they are made and what to do with them is in the lesson link from my profile. See "Mixing two concentrations for known amount of mixture".