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irina1246 [14]
2 years ago
8

Sammy has x flavors of candies with which to make goody bags for Frank's birthday party. Sammy tosses out y flavors, because he

doesn't like them. How many different 10–flavor bags can Sammy make from the remaining flavors? (It doesn't matter how many candies are in a bag, only how many flavors.)
Mathematics
1 answer:
harkovskaia [24]2 years ago
7 0

Answer:

^{(x-y)}C_{10}=\frac{(x-y)!}{10! \times (x-y-10)!}

Step-by-step explanation:

Total flavors Sammy initially had = x

Number of flavors Sammy throw away = y

After throwing away y flavors, the number of flavors Sammy will be left with = x - y

He needs to make 10-flavor bags from these (x - y) flavors. In order words he needs to chose 10 flavors for each bag from(x - y) flavors. The order of selection is not important here, so this is a problem of combinations. Also since we have to make selections or small groups, this also indicates that we have to use combinations.

So we need to make combinations of 10 flavors from a total of (x - y) flavors. This can be represented as ^{(x-y)}C_{10}

The formula for combinations is:

^{n}C_{r}=\frac{n!}{r!(n-r)!}

Using the values in this formula, we get:

^{(x-y)}C_{10}=\frac{(x-y)!}{10! \times (x-y-10)!}

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Answer:

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Step-by-step explanation:

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\text {Hi!}

\text {The Answer to this Problem Is:}

\fbox {True!}

\text {When we look at a number line with positive and negative numbers we see} \text {that positives are to the right and negatives are to the left.}

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See the picture to better understand the problem

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