200 in 19.30. =
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If you divide the distance by the time, you'll get the speed - in this case, in meters/second.
36m in 12s = 3m in 1s or 3m/s or 10.8km/h
meters grams like K H D M D C M m is meters the unit rate for measuring the unit rate is like the middle value
-20
Unit meters long and is the second time the two compared with Rob Gelphman