dr. alvarado is a chemist. he needs to mix10 liters of a soluution of a certain chemical that is 64%...

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dr. alvarado is a chemist. he needs to mix10 liters of a soluution of a certain chemical that is 64% pure. that is 64% is the chemical and the rest is water.to do this he will mix a solution that is 70% pure with one that is 50% pure. how many liters of each should he use?

    • 11 years ago
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