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October 21, 2014

October 21, 2014

Posted by **jessica** on Wednesday, October 10, 2007 at 10:22pm.

- chemistry -
**Dr Russ**, Thursday, October 11, 2007 at 6:01amNot really chemistry!

If the speed of Jean is J mph and the speed of Rita is R mph then we can write 3 equations where t=time(hrs) taken by Jean.

Jxt=945

R(t-4)=135

J=3R

and solve for R

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