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qaws [65]
3 years ago
5

Jessica wants to take three books on vacation with her. She has five books to choose from. How many possible combinations of thr

ee books could she take on vacation?

Mathematics
2 answers:
bonufazy [111]3 years ago
6 0

Answer:

We use the combination formula:

combinations = n! / r! * (n-r)!

n = 5 and r =3

combinations = 5! / 3! * 2!

combinations = 5! / 12

combinations = 5 * 4 * 3 * 2 * 1 / 12

combinations = 5 * 2 = 10

Step-by-step explanation:

Sedaia [141]3 years ago
4 0

It would have to be 3/5

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