SOLUTION: Can you please tell me if I have this right? If not, can you please explain... Thanks sooo much! Assume a class has 30 members. How many committees of three people can be chosen

Question 245966: Can you please tell me if I have this right? If not, can you please explain... Thanks sooo much!
Assume a class has 30 members. How many committees of three people can be chosen?
I have:
30*29/3=290
Found 2 solutions by stanbon, Alan3354:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Assume a class has 30 members. How many committees of three people can be chosen?
----------------
A committee is a group of people so this is a combination problem.
----------------
30C3 = 30!/[(30-3)!*3!]
---
= (30*29*28)/(1*2*3)
= 4060 committees
========================
Cheers,
Stan H.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Assume a class has 30 members. How many committees of three people can be chosen?
------------
30/3 = 10 committees.
---------------------
If you meant in how many different ways can a committee of 3 be chosen:
The 1 choice is 1 of 30.
Then 1 of 29, then 28.
--> 30*29*28 = 24360.
But, a committee of A, B and C is the same as C, A and B, so it's necessary to divide by 6 (3*2*1 = 6)
--------------------------
24360/6 = 4060 different combinations.

RELATED QUESTIONS
Can you please tell me if I am on the right track? Thanks sooo much!!! The question... (answered by richwmiller)
Can you please tell me if this is right? I'm not sure if there is any other way to... (answered by stanbon)
what are the intercepts of the line with the equation 2x-3y=30? a.(-10,0)and(0,15)... (answered by lwsshak3)
I think this is the right category... Can you please explain this? Thanks sooo much!!... (answered by stanbon)
Hi, could you please tell me if I got this answer right? Thanks, here's the equation:... (answered by Earlsdon,elima)
true or false: if a parallelogram has congruent diagonals, then it is a square. Explain. (answered by richard1234)
Hi, can you please help me? Ive tried this problem 9 times...and I keep getting it... (answered by mananth)
{-2x - 2y = 6 {3x + 4y = 8 This is to be solved I came up with(-3,5) Can you please (answered by Alan3354)
3b - 4a = c b=5/6 a= -1/4 c= 3 1/2 I think i have the right answer but am not... (answered by longjonsilver)