I am in Algebra, and i am working on Permutations. I am soooooo lost on these things one of the examples is

How many ways can a club of 10 students pick a president, vice president, and treasurer?

Lessons answer says :

P(10,3) = 720

Question

I am in Algebra, and i am working on Permutations. I am soooooo lost on these things one of the examples is

How many ways can a club of 10 students pick a president, vice president, and treasurer?

Lessons answer says :

P(10,3) = 720

amistre64 · Answer

10 *9 *8 = 90*8 = 720

amistre64 · Answer

or is it....

10!     10.9.8
--- = ------- = 5.3.8 = 108
3!7!        3.2

amistre64 · Answer

well if the answer says 720; i guess i was right lol

amistre64 · Answer

i get lazy about halfway thru and start to make up my own question ;)

anonymous · Answer

sorry my mom needed something.. ^^ thanks amistre! :)

anonymous · Answer

There are 10 ways to pick the first person, 9 ways to pick the second, and 8 ways to pick the third. So to do all three, there are 10*9*8=720 different possible outcomes.