There are 8 songs that you want to buy but you only can buy 3 of the songs. How many different groups of songs can you buy

Respuesta :

3 songs can be selected in 56 ways

Step-by-step explanation:

When the selection has to be made without order combinations are used.

The formula for combination is:

[tex]C(n,r) =\frac{n!}{r!(n-r)!}[/tex]

Here

Total songs = n = 8

Sons to be selected = r = 3

So,

[tex]C(8,3) =\frac{8!}{3!(8-3)!}\\=\frac{8!}{3!*5!}\\=56[/tex]

Hence,

3 songs can be selected in 56 ways

Keywords: Combinations, selections

Learn more about combinations at:

  • brainly.com/question/5720422
  • brainly.com/question/5751004

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