SOLUTION: How many gallons of 80% solution must be mixed with 60 gallons of a 17% solution to obtain a solution that is 70% acid

Question 992663: How many gallons of 80% solution must be mixed with 60 gallons of a 17% solution to obtain a solution that is 70% acid
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
Check how this example was done and you should be able to solve your exercise :

two part mixture, percents, using just a single variable
Just identify carefully which numbers are known and which are unknown to be solved.

Actually, your exercise has only one unknown material, so the equation to setup would be this:

and v is the volume of the 80% acid to add.
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