At a benefit concert, nine bands have volunteered to perform but there is only enough time for six of the bands to play. How ma

Question

maksim [4K]

2 years ago

12

At a benefit concert, nine bands have volunteered to perform but there is only enough time for six of the bands to play. How ma

ny lineups are possible?

Mathematics

1 answer:

Yuliya22 [10] · Answer 1 · 2022-06-17T17:21:12+03:00

Yuliya22 [10]2 years ago

5 0

You have to calculate how many ways you can select six things (r)
from a set of 9 things (n). (See attached formula).

9! / 6! * (3!) =
9*8*7 * 6! / 6! * 3! =
9*8*7 / 3! =
3 * 4 * 7 = 84 lineups

At a benefit​ concert, nine bands have volunteered to perform but there is only enough time for six of the bands to play. How ma

At a benefit concert, nine bands have volunteered to perform but there is only enough time for six of the bands to play. How ma