What is the distance traveled by an object divided by the time it takes to travel that distance called?

The distance traveled by an object divided by the time it takes to travel that distance is called the average speed, r, if you are also considering its direction, its average velocity.

Velocity = distance in one direction/time

Speed = distance/time

For example:

A car that travels 60 miles in a time of 2 hours has a speed of 30 miles per hour.