SOLUTION: A club with 10 members wants to choose a president and vice president. How many different possibilities are there? I am stuck trying to figure this one out. Thank you for your h

Algebra ->  Permutations -> SOLUTION: A club with 10 members wants to choose a president and vice president. How many different possibilities are there? I am stuck trying to figure this one out. Thank you for your h      Log On


   

Question 631390: A club with 10 members wants to choose a president and vice president. How many different possibilities are there?
I am stuck trying to figure this one out. Thank you for your help in advance.
Found 2 solutions by tutor_paul, ewatrrr:
Answer by tutor_paul(519) About Me  (Show Source):
You can put this solution on YOUR website!
If you have a set of n different items (10 in this case), and you want to know how many ways you can choose k of them (2 in this case), the equation is:
P=n%21%2F%28n-k%29%21
-----------------
P=10%21%2F8%21
P=10%2A9
highlight%28P=90%29
============
Good Luck,
tutor_paul@yahoo.com

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

A club with 10 members wants to choose a president and vice president.

How many different possibilities are there?

order important, permutation used:   10P2 = 10%21%2F%288%21%29+=++10%2A9+=+90