SOLUTION: You have two salt water solutions. One consists of 20% salt the other consists of 15% if you want to add these two together to make 5 gallons of 17% solution how much of each solut
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Question 1083346: You have two salt water solutions. One consists of 20% salt the other consists of 15% if you want to add these two together to make 5 gallons of 17% solution how much of each solution should you add? Answer by ikleyn(52787) (Show Source):
Let x be an amount (the volume, in gallons) of the 20% solution to be mixed.
Then the volume of the 15% solution is (5-x) gallons.
Therefore, your "salt balance" equation is
0.2x + 0.15*(5-x) = 0.17*5.
Simplify and solve for x.
