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July 28, 2014

July 28, 2014

Posted by **David** on Saturday, March 20, 2010 at 10:04am.

- Math -
**bobpursley**, Saturday, March 20, 2010 at 10:06amdistanceCarrie=3mi/hr*time

distanceCrystal=9mi/hr*(time-1/3) 20 min is 1/3 of an hr...

set them equal

3t=9t-3

t= 1/2 hr

now you can figure the distance from the first equation.

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