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HotPinkGirl

  • one year ago

A sandwich shop offers the toppings shown below. how many 2 topping sandwiches can you make? ham turkey lettuce tomato bacon cheese mustard A. 14 B. 21 C. 28 D. 36

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  1. HotPinkGirl
    • one year ago
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    @amistre64 @campbell_st @Hero @Michele_Laino @satellite73

  2. anonymous
    • one year ago
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    i think there is 36

  3. anonymous
    • one year ago
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    im not sure thogh tell me if im right

  4. campbell_st
    • one year ago
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    so my question is does ham and ham count as a 2 topping sandwich

  5. Hero
    • one year ago
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    @smartasssskole, Change your username first.

  6. anonymous
    • one year ago
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    no

  7. anonymous
    • one year ago
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    it has to be like ham and letuce or cheese and bacon stuff like that

  8. campbell_st
    • one year ago
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    wow... who's question is it...?

  9. HotPinkGirl
    • one year ago
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    mine

  10. HotPinkGirl
    • one year ago
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    is the answer 36? @campbell_st

  11. campbell_st
    • one year ago
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    I don't think so..?

  12. HotPinkGirl
    • one year ago
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    then can you help me figure out what the answer is

  13. campbell_st
    • one year ago
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    is order important.... as in which topping goes on 1st..?

  14. HotPinkGirl
    • one year ago
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    i dont think so

  15. campbell_st
    • one year ago
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    so is ham and mustard the same as mustard and ham...?

  16. HotPinkGirl
    • one year ago
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    i guess

  17. campbell_st
    • one year ago
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    so if order isn't important.... then you have a combination question, selecting 2 items from 7

  18. campbell_st
    • one year ago
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    do you know about combinations...?

  19. HotPinkGirl
    • one year ago
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    a little bit

  20. campbell_st
    • one year ago
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    the formula is \[^nC_{r} = \frac{n!}{r!(n - r)!}\] n = the number of items you select from r = the number of items you have to select... your calculator probably has a combinations function. so you have n = 7 and r = 2 hope it helps

  21. HotPinkGirl
    • one year ago
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    is it 14?

  22. campbell_st
    • one year ago
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    that seems the most obvious solution to me

  23. campbell_st
    • one year ago
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    just do the calculation....

  24. HotPinkGirl
    • one year ago
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    thanks

  25. campbell_st
    • one year ago
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    oops... I ment on how to do the question... and I'd say 14 is also incorrect

  26. HotPinkGirl
    • one year ago
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    oh

  27. HotPinkGirl
    • one year ago
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    i still dont get it, would it be 21???@campbell_st

  28. HotPinkGirl
    • one year ago
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    @Hero

  29. campbell_st
    • one year ago
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    well That's my best guess at an answer

  30. HotPinkGirl
    • one year ago
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    ok, thanks

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