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July 25, 2014

July 25, 2014

Posted by **Mary** on Sunday, February 3, 2013 at 3:21pm.

What was the difference, in HOURS, between the advertised life of the battery and the actual life of the battery?

- Easy algebra -
**Ms. Sue**, Sunday, February 3, 2013 at 3:26pm4 weeks >> 672 hours

2 days >> 48

672 + 48 + 13 =

Subtract the sum above from 3,000

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