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8 votes
8 votes
A commercial jet has been instructed to climb from its present altitude of 9000 feet to a cruising altitude of 57000 feet. If the plane ascends at a rate of 4000 ft/min, how long will it take to reach its cruising altitude

User Histocrat
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1 Answer

5 votes
5 votes

Answer:

12 min.

Explanation:

9000+4000x=57000

4000x=48000

x=12

User Andreas Bigger
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