Does Zumba help lose weight?

I'm 17, 5'4'' and weigh 143. I want to lose at least 10 lbs. My goal is to get a flat stomach & smaller thighs by my senior prom. If I use the Zumba dvds and follow the Total Body Transformation schedule along with eating healthier, do you think I'll be able to lose the weight? Also, how long do you think it'll take? Have any of you successfully lost weight on Zumba?