Can you please help me with this quadratic word problem?(adsbygoogle = window.adsbygoogle || []).push({});

An airplane flies 520 km against the win and 680 kim with the wind in a total time of 4hr. The speed of the airplane in still air is 300kim/hr. What is the speed of the wind?

Any suggestion is greatly appreciated!!

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# Homework Help: Quadratic Word Problem

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