None.
89 miles is a measure of distance whereas hours per kilometer is a measure of time taken to travel (inverse of speed). The two measure different things and it makes no sense to try to convert from one to the other.
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About 90 Kilometers.
45 kilometers per hour is the same as 27.9 miles per hour.
127.38109440865345 Miles per Hour
30 kilometers per hour = 27.34 feet per second.
14 kilometers = 8.6992 miles (rounded)