Problema Solution
Nancy needs 10 ounces of whole milk for a recipe, but only has cream and low fat milk. In order to get 10 ounces of whole milk, she needs to create a mix of cream and low fat milk to make a mixture that contains 4% butterfat. If cream contains 20% butterfat and low fat milk contains 1.18% butterfat, how many ounces of each does she need to combine to create the 10 ounces of whole milk?
Answer provided by our tutors
Let
x = ounces of cream (20% butterfat)
y = ounces of low fat milk (1.18% butterfat)
x + y = 10
0.20x + 0.0118y = 0.04*10
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click here to see the step by step solution of the system of equations
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x = 1.50 oz
y = 8.50 oz
Nancy needs to combine 1.50 oz of cream and 8.50 oz of low fat milk.