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January 30, 2015

January 30, 2015

Posted by **lee** on Friday, September 24, 2010 at 8:40am.

- math -
**Reiny**, Friday, September 24, 2010 at 9:01am"same time", so we form an equation by setting the times equal to each other.

2500/(450+x) = 1900/(450-x)

cross multiply and solve for x

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