the jetstream is a strong wind current that flows across the united states. flying with the jetstream, a plane flew 3,000 miles in 5 hours. Against the same wind, the trip took 6 hours. Find the airspeed of the plane (the speed in still water).

Question

the jetstream is a strong wind current that flows across the united states. flying with the jetstream, a plane flew 3,000 miles in 5 hours.  Against the same wind, the trip took 6 hours.  Find the airspeed of the plane (the speed in still water).

My answer:
 
X=550 miles per hour

Reiny · Answer

correct (the jet stream does not just flow over the US )