SOLUTION: 1. A meal at a certain restaurant consists of 3 entrees chosen from a group of 15 possible entrees, find the number of possible meal combinations. So I tried multiply 3 by 15 an

Algebra ->  Probability-and-statistics -> SOLUTION: 1. A meal at a certain restaurant consists of 3 entrees chosen from a group of 15 possible entrees, find the number of possible meal combinations. So I tried multiply 3 by 15 an      Log On


   



Question 634250: 1. A meal at a certain restaurant consists of 3 entrees chosen from a group of 15 possible entrees, find the number of possible meal combinations.
So I tried multiply 3 by 15 and that didn't work and I tried multiplying 1/15 x 1/15 x 1/15. I know the possible answers are:
2,730
6
455
or 217,945,728,000
Your help is greatly appreciated! Thank you.

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 
Hi,
combination inquiry:
15C3 = 15!/(3!12!) = 15%2A14%2A13%2F3%2A2%2A1 = 455