SOLUTION: How much water must be evaporated from 30 gallons of a 7% salt solution to make a 12% salt solution?
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Question 990669: How much water must be evaporated from 30 gallons of a 7% salt solution to make a 12% salt solution?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = gallons of water to be evaporated
You start with gallons of salt
and you end up with the same amount
---------------------
12.5 gallons should be evaporated
---------------
check:
OK
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