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anonymous

  • 4 years ago

If a dairyman has 300 pounds of milk testing 3% butterfat, how many pounds of skimmed milk (with no butterfat) must he remove to have milk testing 3.6% butterfat?

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  1. anonymous
    • 4 years ago
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    hhhheeeelllppppp!!!!

  2. King
    • 4 years ago
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    1.2?

  3. anonymous
    • 4 years ago
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    lol can u show me the steps?

  4. ar43r
    • 4 years ago
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    imho 18 pounds

  5. anonymous
    • 4 years ago
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    i think its 1.8

  6. King
    • 4 years ago
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    hmm.ya 1.8 see 3% of 300=9 3.6% of 300=10.8 so if it has to increase skimmed milk must decrease by 10.8-9=1.8 pnds

  7. anonymous
    • 4 years ago
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    i like your logic :D

  8. dumbcow
    • 4 years ago
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    No the answer is 50 lbs If you only remove 1.8 then you are left with 298.2 298.2*.036 = 10.73 which is much higher than 9 since the amount of butterfat remains the same 300(.03) = (300-x)(.036) 9 = 10.8 -.036x .036x = 1.8 x = 50

  9. ar43r
    • 4 years ago
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    nicely done. have to note your solution.

  10. dumbcow
    • 4 years ago
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    thanks another way of looking at it 9/300 = .03 so 9/x = .036 --> x=250

  11. ar43r
    • 4 years ago
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    correct!

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