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December 11, 2016

Homework Help: Math

Posted by Kelsey on Wednesday, May 14, 2008 at 2:00am.

I need help with this problem:

Two planes start from Los Angeles International Airport and fly in opposite directions. The second plane starts ½ hour after the first plane, but its speed is 80 kilometers per hour faster. Find the airspeed of each plane if 2 hours after the first plane departs the planes are 3200 kilometers apart.

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