SOLUTION: 2 private airplanes travel toward each other from cities that are 780km apart at speeds of 190km/h and 200km/h . they left at same time. In how many hours will they meet ?
my s
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Question 720308: 2 private airplanes travel toward each other from cities that are 780km apart at speeds of 190km/h and 200km/h . they left at same time. In how many hours will they meet ?
my solution not sure if this is correct
let x = # of hours planes will meet
190x+200x=780km
390x=780
x=2 hours the planes will meet Thank you for checking this for me Answer by checkley79(3341) (Show Source):
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