SOLUTION: A tank contains 40 L of a mixture of plant fertilizer and water in which 20% of the mixture is fertilizer. How much of the mixture should be drained and replaced by an equal amount

SOLUTION: A tank contains 40 L of a mixture of plant fertilizer and water in which 20% of the mixture is fertilizer. How much of the mixture should be drained and replaced by an equal amount

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Question 1065944: A tank contains 40 L of a mixture of plant fertilizer and water in which 20% of the mixture is fertilizer. How much of the mixture should be drained and replaced by an equal amount of water to dilute the mixture to 15% fertilizer?
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
This is similar to the typical "radiator antifreeze" drain & replace problems.

https://www.algebra.com/my/drain-and-replace-antifreeze.lesson?content_action=show_dev
https://www.algebra.com/my/drain-and-replace-antifreeze.lesson?content_action=show_dev
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