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anonymous

  • one year ago

A juice company decides to test five different brands of juice. The different brands have been labeled A, B, C, D, and E. The company decides to compare each brand with the other brands by pairing together different brands. How many different pairs will result by selecting two different brands at the same time?

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  1. anonymous
    • one year ago
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    @OregonDuck

  2. anonymous
    • one year ago
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    11 15 120 10

  3. anonymous
    • one year ago
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    I am thinking 10 but IDK

  4. OregonDuck
    • one year ago
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    you are right

  5. OregonDuck
    • one year ago
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    you would want to find the number of combinations of 5 things taken 2 at a time 5C2 = 5!/[2!3!] = 5 * 4 * 3 * 2 * 1/(2 * 1 * 3 * 2 * 1) = (5 * 4)/2 = 5 * 2 = 10

  6. anonymous
    • one year ago
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    Yay! OK can you do one more?

  7. OregonDuck
    • one year ago
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    yup

  8. anonymous
    • one year ago
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    There are 9 candidates running for 3 seats on a committee. How many different election results are possible?

  9. anonymous
    • one year ago
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    36 84 504 56

  10. anonymous
    • one year ago
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    I think 84

  11. OregonDuck
    • one year ago
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    yup you are right 84 it means 9C3 = 9! / (9-3)!3! = 9! / 6!3! = 9*8*7*6! / 6!*3*2*1 = 84

  12. anonymous
    • one year ago
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    Yay! Thank you! You've been a big help!

  13. OregonDuck
    • one year ago
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    fyi you should fan me if you need any more help that way you can send me a message

  14. OregonDuck
    • one year ago
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    yup np anytime

  15. anonymous
    • one year ago
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    lol yeah I already did

  16. OregonDuck
    • one year ago
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    oh ok good :)

  17. anonymous
    • one year ago
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    Thanks for the help! :)

  18. OregonDuck
    • one year ago
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    yup, anytime you need help just send me a message and i will try to go on openstudy

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spraguer (Moderator)
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