SOLUTION: A tank holds 80 liters of a chemical solution. Currently, the solution has a strength of 30%. How much of this should be drained and replaced with a 70% solution to get a final str
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Question 860549: A tank holds 80 liters of a chemical solution. Currently, the solution has a strength of 30%. How much of this should be drained and replaced with a 70% solution to get a final strength of 40%?
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
A good lesson on this very same idea is presented as this one:
Drain and Replace: Mixture Problem. Just assume the radiator is a holding-tank; 'antifreeze' could be any chemical.
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