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conversequeen Group Title

A dairy farmer wants to make an 8% butterfat mixture. How many pounds of milk containing 3% butterfat must she add to 100 pound of cream containing 20% butterfat? Please help!

  • 3 years ago
  • 3 years ago

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  1. INT Group Title
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    x is the # of pounds of milk (.03x + .2*100)/(100+x)=.08

    • 3 years ago
  2. conversequeen Group Title
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    Why is it divided by (100+x)?

    • 3 years ago
  3. satellite73 Group Title
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    odd way of looking at it but i guess it works

    • 3 years ago
  4. satellite73 Group Title
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    the 100 pounds of cream containing 20% butterfat has 20 pounds of butterfat. if i you add x pounds of 3% butterfat milk it will then contain \[20+.03x\] butterfat. you will have \[100+x\] pounds of milk which you want to be 8% butterfat, so set \[20+.03x=.08(100+x)\] and solve for x

    • 3 years ago
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