Answered: A farmer has 100 gallons of 70% pure…

A farmer has 100 gallons of 70% pure disinfectant. He wishes to mix it with disinfectant with is 90% pure in order to obtain 75% pure disinfectant. How much of the 90% disinfectant must he use?

Algebra for College Students

10th Edition

ISBN:9781285195780

Author:Jerome E. Kaufmann, Karen L. Schwitters

Publisher:Jerome E. Kaufmann, Karen L. Schwitters

Chapter11: Systems Of Equations

Section11.CR: Review Problem Set

Problem 36CR: Sara invested 2500, part of it at 4 and the rest at 6 yearly interest. The yearly income on the 6...

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A farmer has 100 gallons of 70% pure disinfectant. He wishes to mix it with disinfectant with is 90% pure in order to obtain 75% pure disinfectant. How much of the 90% disinfectant must he use?

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