Question 1139405
This is a combinations problem, where you are choosing 5....3 at a time. 


Grab a scientific calculator and locate the permutations and combinations button.
It might be labeled nPr and nCr. 
You want to use nCr for combinations. 


You are choosing 5....3 at a time.
So, type in 5C3


You should get 10.
<br>For more help like this, visit: <a href = "http://www.algebrahouse.com/ask-a-question.html" target = "_blank">www.algebrahouse.com</a><br><br><br>