contestada

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

Respuesta :

It would have to be 3/5

wolf1728

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:

Ver imagen wolf1728

Otras preguntas