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August 21, 2014

August 21, 2014

Posted by **lee** on Friday, September 24, 2010 at 10:57am.

- math -
**Henry**, Friday, September 24, 2010 at 10:00pmCommercial Jet speed = x mi/hr,

Military Jet speed = (4x + 200) mi/hr.

X mi/hr * 1 hr + (4x + 200) mi/hr * 1 hr = 2050,

x + (4x + 200) = 2050,

5x + 200 = 2050,

5x = 2050 - 200 = 1850,

x = 370 mi/hr = commercial jet speed,

4x + 200 = 4 * 370 + 200 = 1680 mi/hr =

military jet speed.

- math -
**Jen**, Thursday, May 12, 2011 at 10:26amIf this is a right angle why does Henry not use the pythagorean theorum? Since the distances are just the speeds (thanks to the 1 hour) wouldn't it be X^2 + (4x+200)^2 = 2050^2?

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