SOLUTION: An airplane makes a 990km flight with a tailwind and returns, flying into the same wind. The total flying time is 3 hours and 20 minutes, and the airplane's speed in still air is 6

Question 856951: An airplane makes a 990km flight with a tailwind and returns, flying into the same wind. The total flying time is 3 hours and 20 minutes, and the airplane's speed in still air is 600km/h. What is the speed of the wind?
Answer by JulietG(1812) (Show Source): You can put this solution on YOUR website!
Many schools use the same books. Often a search of this site will show your problem already answered (makes for a very fast solution!). This one has been answered (and excellently so) at http://www.algebra.com/algebra/homework/quadratic/Quadratic_Equations.faq.question.324498.html
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