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December 22, 2014

December 22, 2014

Posted by **Anonymous** on Thursday, October 14, 2010 at 11:08pm.

- math -
**Henry**, Friday, October 15, 2010 at 8:56pmX MPH = train a speed,

(x + 10) mph = train b speed,

d1 + d2 = 960 m1,

8x + 8(x + 10) = 960,

8x + 8x + 80 = 960,

16x + 80 = 960,

16x = 960 - 80,

16x = 880,

x = 55 mph,

(x + 10) = 55 + 10 = 65 mph.

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