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July 4, 2015

Homework Help: 8th Grade Algebra

Posted by Gabrielle on Saturday, March 7, 2009 at 7:32pm.

I don't know how to do these types of problems whatsoever.

1) It takes a small jet plane 4 hours less time than it takes a propeller-driven plane to travel from Glen Rock to Oakville. The jet plane averages 637 km/h while the propeller plane averages 273 km/h. How far is it from Glen Rock to Oakville?

2)An airplane took 2 hours to fly 600 km against a head wind. The return trip with the wind took 1 2/3 hours. Find the speed of the plane in still air.

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