SOLUTION: Two planes leave from chicago at noon. One heads east at 420mph while the other heads west at 413 1/3 mph. At what time will they be 2000 miles apart

Question 923499: Two planes leave from chicago at noon. One heads east at 420mph while the other heads west at 413 1/3 mph. At what time will they be 2000 miles apart
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
combined speed = 420 + 413.333 = 833.333
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s = d/t
833.333 = 2000/t
t = 2000/833.333
t = 2.4 hours
t = 2 hours and (60 * 0.4) minutes
t = 2 hours and 24 minutes
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answer:
at 2:24 PM
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