How often should I do Pilates and cardio, since I want to do both?

Katie asked:


I don’t want to go overboard, but I want to see results. I’m going to be doing Pilates at home and going to the gym. Honestly, the only the I really do at the gym is the elliptical macine. So how many days a week should I do each? What kind of schedule should I go by?
My #1 goal is to lose weight. I know Pilates isn’t meant for that, but I would like to get toned also and it seems like a great way to go about it.