SOLUTION: Define two variables. Write two equations and then solve. Two airplanes travel toward each other from cities that are780 km apart at the speeds of 190 km/h and 200 km/h. They left

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Define two variables. Write two equations and then solve. Two airplanes travel toward each other from cities that are780 km apart at the speeds of 190 km/h and 200 km/h. They left      Log On


   

Question 1066370: Define two variables. Write two equations and then solve.
Two airplanes travel toward each other from cities that are780 km apart at the speeds of 190 km/h and 200 km/h. They left at the same time. In how many hours will they meet?
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
https://www.algebra.com/my/Two-Part-Mixture-with-one-material-quantity-unknown.lesson?content_action=show_dev
https://www.algebra.com/my/Two-Part-Mixture-with-one-material-quantity-unknown.lesson?content_action=show_dev