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  2. Please check Ms. Sue on math!

An ice cream shop offers the toppings shown below. How many 4-topping ice cream sundaes can you make?

chocolate chips
walnuts
strawberry sprinkles
caramel
hot fudge
whipped cream
gummy bears

11
28 **
30
35

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Eliza
5 answers

  1. your right

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    James

  2. I think you're right -- but I'm not sure. Basically I'm an English and social studies teacher and haven't had a math class since high school -- over 60 years ago.

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    Ms. Sue

  3. you have to do 7*4 and get 28 so yes u are correct

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    James

  5. 28 is not correct

    you are selecting 4 toppings from 7
    This is a 'combination' type question
    number of ways
    = C(7,4) = 7!/(5!2!) = 35

    If you care about the order in which the toppings are put on the sundae
    then it would be
    P(7,4) = 7x6x5x4 = 840 , which is not one of the choices, so they must not care about the order.
    My answer at the top is correct.

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    Reiny

  6. Thanks, Reiny! :-)

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    Ms. Sue

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