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September 20, 2014

September 20, 2014

Posted by **Scott** on Wednesday, October 20, 2010 at 6:16pm.

- Math -
**Henry**, Friday, October 22, 2010 at 2:29pmWorking together is like resistors working in parallel:

t1*t2 / (t1 + t2) = 6,

10t2 / (10 + t2) = 6,

Cross multiply:

10t2 = 60 + 6t2,

10t2 - 6t2 = 60,

4t2 = 60,

t2 = 60 / 4 = 15 h.

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