SOLUTION: to make low-fat cottage cheese, milk containing 4% butterfat is mixed with milk containing 1% butterfat to obtain 15 gallons of a mixture containg 2%butterfat. How many gallons of

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Question 365368: to make low-fat cottage cheese, milk containing 4% butterfat is mixed with milk containing 1% butterfat to obtain 15 gallons of a mixture containg 2%butterfat. How many gallons of each type of milk should be used?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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to make low-fat cottage cheese, milk containing 4% butterfat is mixed with
milk containing 1% butterfat to obtain 15 gallons of a mixture containing 2%butterfat.
How many gallons of each type of milk should be used?
Let x = amt of 4% milk required
then
(15-x) = amt of 1% milk required
:
A typical mixture equation:
.04x + .01(15-x) = .02(15)
solve for x