SOLUTION: Hello, Can you please show me how to do this problem? A baseball manager has 12 players of the same ability. How many 9 player starting lineups can he create? Thank You!

Question 524152: Hello,
Can you please show me how to do this problem?
A baseball manager has 12 players of the same ability. How many 9 player starting lineups can he create?
Thank You!
Found 2 solutions by stanbon, oberobic:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A baseball manager has 12 players of the same ability. How many 9 player starting lineups can he create?
--------------------
# of groups of 9 = 12C9 = (12*11*10)/(1*2*3) = 220 lineups
==========================
Cheers,
Stan H.
============

Answer by oberobic(2304) (Show Source): You can put this solution on YOUR website!
With 12 players, how many ways can the manager pick a line-up of 9 players.
n = 12
k = 9
.
n!/(n-k)! = 12!/3! = 79833600
.

RELATED QUESTIONS
A baseball manager has 12 players of the same ability. How many different 9 player... (answered by monica35)
A baseball manager has 11 players of the same ability. How many 9 players starting... (answered by Boreal)
A baseball manager has 11 players of the same ability. How many 9 player starting lineups (answered by stanbon)
A baseball manager has 10 players of the same ability. How many 9-player starting lineups (answered by stanbon)
A youth baseball team contains 12 players, all of whom can play any position. The coach... (answered by Boreal)
A baseball manager is determining the batting order for the team. The team has 9 players, (answered by htmentor)
how many ways can 15 players be chosen to form a baseball team of... (answered by jim_thompson5910)
How many ways can 15 girls be chosen to form a baseball team of 9... (answered by Alan3354)
How many different 9 player baseball teams can be formed from 15 players if 3 only pitch... (answered by stanbon,mathslover)