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| Question 374252:  Find how many quarts of 4% butterfat milk and 1% butterfat milk should be mixed to yield 60 quarts of 2% butterfat milk.
 Answer by robertb(5830)
      (Show Source): 
You can put this solution on YOUR website! 0.04x + 0.01(60-x) = 0.02*60 0.04x + 0.6 - 0.01x = 1.2,
 0.03x = 0.6,
 x = 20 quarts, the amount of 4% butterfat milk, and
 60 - 20 = 40 quarts, the amount of 2% butterfat milk.
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