Solve the problem.A jet plane traveling at a constant speed goes 1200 miles with the wind, then turns around and travels for 1000 miles against the wind. If the speed of the wind is 50 mph and the total flight took 4 hours, find the speed of the plane.

A. 435 mph
B. 525 mph
C. 605 mph
D. 550 mph


Answer: D

Mathematics

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A. = -2
B. = 
C. = 
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