The average speed of one airplane is 200 mph faster than that of an automobile. If the automobile starts at 3 a.m. and the airplane starts from the same place at 11 a.m., they will have traveled the same number of miles by 1:00 p.m.
If r represents the rate of the automobile, how many miles does the plane travel?
200r
2(200 + r)
10r

Question

The average speed of one airplane is 200 mph faster than that of an automobile. If the automobile starts at 3 a.m. and the airplane starts from the same place at 11 a.m., they will have traveled the same number of miles by 1:00 p.m.
If r represents the rate of the automobile, how many miles does the plane travel?
200r
2(200 + r)
10r

anonymous · Answer

i think my anwer is 2(200+r)

anonymous · Answer

show the work

anonymous · Answer

http://openstudy.com/users/robtobey#/updates/50a67e21e4b082f0b852a62a

anonymous · Answer

but what is the answer  b or  c @robtobey

anonymous · Answer

Distance travelled by the plane = distance travelled by the automobile
                                                = 10r

anonymous · Answer

10r