SOLUTION: A 90 gallon of 4% fat is mixed with non-fat (0%) milk to make 1% milk. How much non-fat milk is needed

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Question 870246: A 90 gallon of 4% fat is mixed with non-fat (0%) milk to make 1% milk. How much non-fat milk is needed
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
This is the lesson for that type of question: Mixture: one material quantity unknown