Final answer:
Speed equals distance divided by time. Average speed is calculated by dividing the total distance traveled by the elapsed time.
Step-by-step explanation:
The formula for calculating average speed is the total distance traveled divided by the elapsed time. Accordingly, the answer to the question 'Speed equals distance divided by ___________________' is time. When we talk about average velocity, it is the displacement divided by time, and average acceleration is defined as the change in velocity divided by the time over which the change occurs. Finally, deceleration is a type of acceleration that results in a decrease in velocity.