Posted by **Tee** on Thursday, May 16, 2013 at 8:50pm.

By what percent is a 100-watt light bulb brighter than a 60-watt light bulb? (Round percent to the nearest tenth.)

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**PsyDAG**, Friday, May 17, 2013 at 12:23pm
(100-60)/60 = ?

- math -
**Denise**, Saturday, May 18, 2013 at 8:03pm
2400

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