SOLUTION: how many ounces of pure water must be added to 60oz of a solution that is 20% water to make a solution that is 30% water?
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Question 446233: how many ounces of pure water must be added to 60oz of a solution that is 20% water to make a solution that is 30% water?
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
.20(60)+x=.30(60+x)
12+x=18+.30x
.70x=6
x=6/.70=60/7=8 4/7 oz..
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