SOLUTION: how much cream that is 20% butterfat should be mixed with milk that is 5% butterfat to get 10 gallons of cream that is 14% butterfat?

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Question 880419: how much cream that is 20% butterfat should be mixed with milk that is 5% butterfat to get 10 gallons of cream that is 14% butterfat?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
.20x + .05(10G - x) = .14(10G)
x = .09(10G)/.15