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(39617) (Show Source):
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