Hello there!
Your question states: Robert ran 700 meters in two minutes. his average speed was how many kilometers per hour?
Roberts average speed was 21 kilometers per hour.
We can figure this out by dividing 700 by 2. This is 350. Then we multiply 350 by 60. This = 21,000. Now we must convert this to kilometers. This is 21 kilometers.
700/2 = 350 meters per minute
350 * 60 = 21,000 meters per hour
21,000/1000 = 21 kilometers per hour
Hope I helped!
Let me know if you need anything else!
~ Zoe
