Multiple Choice
Solve.
-A plane traveling 390 mph in still air encounters a 60-mph headwind. How long will it take the plane to travel 660 mi into the wind? Round your answer to the nearest tenth of an hour, if necessary.
A) 0.5 hr
B) 2 hr
C) 217,800 hr
D) 1.5 hr
Correct Answer:

Verified
Correct Answer:
Verified
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