SOLUTION: two planes leave from Dallas, Texas. The first plane travels east at a rate of 250 mph. The second plane travels west at a speed of 225 mph. How long will it take for them to be 28

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Question 398224: two planes leave from Dallas, Texas. The first plane travels east at a rate of 250 mph. The second plane travels west at a speed of 225 mph. How long will it take for them to be 2850 miles apart?

Answer by stanbon(57346) About Me  (Show Source):
You can put this solution on YOUR website!
two planes leave from Dallas, Texas. The first plane travels east at a rate of 250 mph. The second plane travels west at a speed of 225 mph. How long will it take for them to be 2850 miles apart?
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They are separating at the rate of 250+225 = 475 mph
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time = distance/rate
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time = 2850/475 = 6 hrs.
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Cheers,
Stan H.