SOLUTION: 1) Dave has 20 ounces of a 20% of salt solution, How much salt should he add to make it a 25% solution?
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Question 425462: 1) Dave has 20 ounces of a 20% of salt solution, How much salt should he add to make it a 25% solution?
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
20x.80(water)=16
.75q=16
q=16/.75=21.3333
21.3333-20=1.33333 ozs. of pure salt needed to make a 25% solution..
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