Thursday

November 27, 2014

November 27, 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.

**Answer this Question**

**Related Questions**

math - A library crew can shelve books in six hours. Another crew can do the job...

MATH NEED HELP! - I have four questions in one. 1. A library crew can shelve ...

college algebra - the following rational function gives the number of days it ...

algebra - Solve A contractor finds that it takes a crew A 6 hours to construct a...

Math - A work crew of 3 people requires 3 weeks and 2 days to do a certain job. ...

math - Amy can clean the house in 7 hours. When she works together with Tom, the...

Math - Barry can do a certain job in 3 hours, whereas it takes Sanchez 5 hours ...

math - 8 workers together at the same rate finished a painting job in 5 hours. ...

college algebra word problem - Wayne can do a job in 6 hours, while Susan can do...

elementary and intermediate algebra - Barry can do a certain job in 9 hours, ...