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May 26, 2015

Homework Help: algebra

Posted by Heather on Wednesday, April 24, 2013 at 5:34pm.

Complete the following word problems.
14.It takes 9 hours for Isabella to rake leaves by herself,but her brother Matthew can work three times as fast.If they work together, how long will it take them to rake leaves?
Rate Time Work Done

Isabella

Matthew

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