Answer:
4600 miles
Explanation:
You want to know the difference in miles per hour between a satellite traveling 45000 miles in 5 hours and one traveling 79200 miles in 18 hours.
Miles per hour
The speed in miles per hour is the ratio of miles to corresponding hours. The difference in miles traveled in one hour will be ...
A speed - B speed
45000 mi/(5 h) - 79200 mi/(18 h) = 4600 mi/h
Explorer B travels 4600 fewer miles in an hour than Explorer A.
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