SOLUTION: Gabe Amodeo,a nuclear physicist, needs 50 liters of a 60% acid solution. he currently has a 20% solution and a 70% solution. how many liters of each does he need to make the needed

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Question 823747: Gabe Amodeo,a nuclear physicist, needs 50 liters of a 60% acid solution. he currently has a 20% solution and a 70% solution. how many liters of each does he need to make the needed 50 liters of 60% acid solution?
Gabe needs? liters of the 20% solution.

He also needs? liters of the 70% solution.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

Gabe Amodeo,a nuclear physicist, needs 50 liters of a 60% acid solution. 

he currently has a 20% solution and a 70% solution. 

Let highlight_green%28x%29 and highlight_green%2850-x%29represent the amount of the 70% and 20% solutions respectively

Question states***

 .70x + .20(50-x) = .60*50L    |multiplying thru by 100

  70x + 20(50-x) = 3000L

       50x = 2000L

         x =40 L of 70% solution

and highlight_green%2850-x%29 is 10 L of 20% solution