SOLUTION: How long will an airplane have to fly if it needs to cover a distance of 780 miles and flies at 390mph(show all 4 steps)

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Question 847129: How long will an airplane have to fly if it needs to cover a distance of 780 miles and flies at 390mph(show all 4 steps)
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
d = r*t
t = d/r
---------------
t = 780 miles/390 mi/hr
t = 2 hours
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You have 2 numbers to deal with. If you can't do that, you're in the wrong class.