SOLUTION: a bakery is trying to make a batch of cake mix that requires they use 20 liters of milk with 4% butterfat. They currently have one milk with 7% butterfat, and one milk with 3% butt

Question 1130045: a bakery is trying to make a batch of cake mix that requires they use 20 liters of milk with 4% butterfat. They currently have one milk with 7% butterfat, and one milk with 3% butterfat. How many liters of each of the milks that they currently have would they need to mix in order to obtain the necessary 20 liters of 4% butterfat milk?
Answer by josgarithmetic(39627) (Show Source): You can put this solution on YOUR website!

x liters of 7% butterfat
20-x liters of 3% butterfat

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15 liters of the 3% butterfat milk
5 liters of the 7% butterfat milk
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