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 2 years ago
Which set of equations would be used to solve this word problem?
An airplane flew 3 hours with a 30 mph head wind. The return trip with a tail wind of the same speed took 2 hours. Find the speed of the plane in still air.
d = 3(r − 30) and d = 2(r + 30)
d = 3(r + 30) and d = 2(r − 30)
d = 5(r + 30)
None of these systems can be used to solve this problem.
 2 years ago
Which set of equations would be used to solve this word problem? An airplane flew 3 hours with a 30 mph head wind. The return trip with a tail wind of the same speed took 2 hours. Find the speed of the plane in still air. d = 3(r − 30) and d = 2(r + 30) d = 3(r + 30) and d = 2(r − 30) d = 5(r + 30) None of these systems can be used to solve this problem.

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RajshikharGupta
 2 years ago
Best ResponseYou've already chosen the best response.1i think it should be 2nd one
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