Question

A supersonic jet was flying at a constant velocity starting 8,400 kilometers west of U.S. airspace. It

flew one-third of the way to U.S. airspace in 2 hours. What was the jet's velocity?
Write your answer as a whole number.
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Answer 1

1,400 km/hr

Explanation:

One third of the distance 8,400 km is 2,800 km.

The unit rate (speed) of the jet is therefore

2,800 km

--------------- = 1,400 km/hr

2 hr