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anonymous

  • one year ago

Peter is giving marbles to some children at a carnival. He has 5 red marbles, 4 blue marbles, and 3 yellow marbles. If Peter selects a marble randomly without looking, what is the probability that he will give a blue marble to the first child and then a yellow marble to the second child? 4/12 + 3/12 = 7/12 4/12 + 3/11 = 80/132 4/12 * 3/12 = 12/144 4/12 * 3/11 = 12/132

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  1. slickster256
    • one year ago
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    @LilyWinter

  2. anonymous
    • one year ago
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    it's D

  3. anonymous
    • one year ago
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    because he would have taken a marble out which gives him 3/11

  4. anonymous
    • one year ago
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    Wouldn't it be B if its 3/11?

  5. anonymous
    • one year ago
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    oh wait nvm

  6. anonymous
    • one year ago
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    oh, ya good catch, i didnt see the * symbol

  7. anonymous
    • one year ago
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    no, it is B

  8. anonymous
    • one year ago
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    oh ok lol

  9. anonymous
    • one year ago
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    You had it right the first time it is D

  10. anonymous
    • one year ago
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    why multiply instead of divide?

  11. anonymous
    • one year ago
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    add*

  12. anonymous
    • one year ago
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    okie cool :p

  13. anonymous
    • one year ago
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    have you learn about tree diagrams?

  14. anonymous
    • one year ago
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    that will help explain why we are multiplying and not adding

  15. anonymous
    • one year ago
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    starting too

  16. anonymous
    • one year ago
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    ok thanks guys!

  17. anonymous
    • one year ago
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    np

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