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September 2, 2014

September 2, 2014

Posted by **Lucy** on Saturday, March 8, 2008 at 7:29pm.

- Algebra II -
**Ms. Sue**, Saturday, March 8, 2008 at 7:40pmWith two of them working together, then their times will be cut in half. Thomas can do it in 2 hours, while Julia does it in 3 hours.

(2 + 3)/ 2 = 2 1/2 hours

- Algebra II -
**drwls**, Saturday, March 8, 2008 at 7:51pmNot quite.

Their combined rate of doing the rob is

1/4 job/h + 1/6 job/h = 5/12 job/h

5/12 job/h * T (hr) = 1 job

T = 12/5 = 2 2/5 hours

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