linux - 384 MB enough for a starter VPS?

I'm considering to rent a VPS with 384 MB memory. It would run on CentOS and would have cPanel with Apache 2 / MySQL and Phusion Passenger with nginx / sqlite.

What do you think, will it have enough memory? It would serve around 10 small traffic PHP/MySQL websites and 3-4 small traffic Ruby on Rails app.

Thanks for your suggestions.