SOLUTION: Trevon wants to make a 40% acid solution. He has already poured 6 fl. oz. of a 20% acid solution into a beaker. How many fl. oz. of a 80% acid solution must he add to this to creat

Question 653610: Trevon wants to make a 40% acid solution. He has already poured 6 fl. oz. of a 20% acid solution into a beaker. How many fl. oz. of a 80% acid solution must he add to this to create the desired mixture?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = fl oz of 80% solution needed
fl oz of acid in 20% solution
--------------

3 fl oz of 80% solution are needed
check:

OK
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