SOLUTION: solve. two planes travel toward each other from cities that are 780km apart at rates of 190 km/h and 200km/h. They started at the same. In how many hours will they meet?

Question 129617This question is from textbook
: solve.
two planes travel toward each other from cities that are 780km apart at rates of 190 km/h and 200km/h. They started at the same. In how many hours will they meet? This question is from textbook

Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Say that the plane flying 190 km/hr covers km when
the planes meet
The other plane covers km when they meet
They have both been flying for hrs when they meet

There are 2 equation and 2 unknowns. It is solvable

Set the x's equal to eachother

hrs
They will meet in 2 hours
check answer:

OK
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