Respuesta :

raihankhobaib

Answer:

12.5 km/hr

Step-by-step explanation:

You find the mean after making them both the same measurement.

You would divide 10 by 2 to get 5 km/hr

You would use the 20 km/hr

You would add them and get 25

Then divide by 2 to find the mean and get 12. 5

PLZ MARK BRAINLIEST

send2bmg
Answer: 10km/hr

Explanation:

The equation for average speed is total distance divided by total time.

See picture below for work.