Question It took a plane 2 hours to fly from Dallas to New York with the headwind and 1.5 hours to return with the tailwind. If the speed of the wind was 30 mph, how far apart are the two cities?

Answer: The distance between the two cities is 360 miles. Step-by-step explanation: Let a equal the airspeed of the plane in still air; and d be the distance between the two cities. Then: d/a+30=1.5 d=1.5a+45 and d/a-30=2 d=2a-60 So 2a-60=1.5a+45 .5a=105 a=210 d/210-30=2 d=360 The distance between the two cities is 360 miles. Reply

Answer:Step-by-step explanation: