Answer:
The average speed of this student is 8 kilometers per hour.
Step-by-step explanation:
In order to find the answer, you have to use the following formula to calculate the average speed:
S=d/t
S=average speed
d=distance= 4 kilometers
t=time= 30 minutes (you have to express this in terms of hours by dividing this by 60 that is the amount of minutes in an hour=30/60= 0.5 hours
S=4 kilometers/0.5 hours= 8 kilometers per hour
According to this, the answer is that the average speed of this student is 8 kilometers per hour.
