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September 20, 2014

September 20, 2014

Posted by **kayla** on Thursday, September 25, 2008 at 7:05pm.

I got 2.5 hours but i think that is totally wrong?????

- pre calc -
**bobpursley**, Thursday, September 25, 2008 at 7:18pmcombined rate=field/3hrs + field/5hrs

time=field/(field/3 + field/5)

time= 15/(8)= less than your time.

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