Cannot Implicitly Convert Type in XNA

Question

i have a bouncing ball, and i tried to make so when it bounces once, the speed gets higher.

In my ball class, i have a float speed;

and i initialize

Answer 1

Does the speed needs to be float? If not you could make

int speed;

Or use a explicit cast

if (movingUp) { ballRect.Y -= (int)speed; }// No Error