SOLUTION: Two planes leave Denver International Airport at thte same time. One travels north at 525 mph, and the other travels south at 625 mph. After 3 hours, the planes are how far apart?

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Question 227564: Two planes leave Denver International Airport at thte same time. One travels north at 525 mph, and the other travels south at 625 mph. After 3 hours, the planes are how far apart?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
(3*525)+(3*625)=d
1,575+1,875^2=d
3,450 miles is the distance between the 2 planes.