SOLUTION: Two cars are at the same place and leave at the same time, one car is going 35 mph the other car is going 50 mph how long until they are 400 miles apart

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Question 777206: Two cars are at the same place and leave at the same time, one car is going 35 mph the other car is going 50 mph how long until they are 400 miles apart
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
I know what you mean, but first, be aware, you need to know in which directions each of these two cars are going. If they are going in opposite directions, then state this.

Now, assuming that you mean, the cars are traveling in opposite directions, away from eachother:
They travel for some time, h hours.
35%2Ah%2B50%2Ah=400
%2835%2B50%29h=400
h=400%2F85
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h is 4 hours 42 minutes...
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