Quote Originally Posted by Yeah
Judging by your comments: Holding A3 in a holdem 10 handed game with top pair on the flop will result in a plus ev move
Depends on the number of bets in the pot and cost to see showdown.

Quote Originally Posted by Yeah
In holdem, in a 10 handed game how many other people (odds wise) hold an ace if you do?
This has been covered before. Usually one other.

Quote Originally Posted by Yeah
What are the odds you will now hit your aces on the flop? (under generalzation, assume there are only 2 aces left, odds wise that would be a correct assumption most of the time)

What are the odds that that random player plays his ace? (generalization is alright with me, but this is a tough question and is very non-detailed, yet it must be considered)

What is the odds you will now win the hand with top pair? (and your 3 kicker)

So, what is the number of bets preflop you need to play your A3?
I'd never play it unsuited. Just about any suited Ace I'll play if I'm likely to get multiple loose limpers. Better yet, if I can raise the button or CO behind multiple loose limpers.