A cross- country runner runs 10 km in 40 minutes. what is his average speed
2 answers:
The answer is 400 because you multiply it
All you have to do is to find the unit rate at which this person runs.
It is
10 km
--------- = 1/4 km/min, or 1 km
40 min --------- , or 0.25 km/min
4 min
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It's a bit hard to explain but I hope this helps
