it really depends on what you think will call.
but first, you have some fold equity. people WILL fold to the shove. that alone covers a lot of the calls you get and lose.
then, you often have more than the 9 outs you seem to count. say you have AQs and get called by KK on a J72 flop. Then you already have 12 outs, and this means you have almost 50% equity.
And you may even be better than that. Shoving AKs into JJ on a T72 flop - you are a favorite statistically...
so yes, decent fold equity + more than decent pot equity = not a bad shove at all.
please note that all of the above is only true at slightly higher stakes, say 50nl and above. i would not really recommend you go that way at a 5nl table.