Respuesta :
Answer:
Distanced covered = 20km
time taken = 4 hrs
speed = S/t
=20 /4 = 5 km/hrs
#FreeMelvin
Answer: 5 km per hour
Explanation: If you set up a unit rate, you can simplify to find the answer.
20 km ?
------------ = ---------------
4 hr 1 hr
Use the crisscross method, so 20 times 1 is 20, and 20 divided by 4 is 5, so the answer is 5 km per one hour.