Answer: Here's an explanation
Step-by-step explanation:
Average speed is defined as the distance traveled divided by the time taken to travel that distance.
In this case, you traveled a distance of 3 kilometers in a time of 0.5 hours, so your average speed is:
Average speed = Distance / Time = 3 km / 0.5 hours = 6 km/hour
Therefore, your average speed is 6 kilometers per hour.