Answer:
80 divide by 4 so the final answer is 20km per hour
Explanation:
speed measured as kilometer per hour. when it takes 80 km for 4 hour, all you have to do is divide 80 by 4.
hope this helps. good luck
Avg speed = total distance ÷ total time
= 80 ÷ 4 = 20 km/h
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