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Mathematics 9 Online
OpenStudy (anonymous):

Jared can mow the lawn in 3 hours, while Rima can do the same job in 4 hours and 30 minutes. If they work together, how long will it take them to mow the lawn?

OpenStudy (raden):

x : +

hero (hero):

\[\frac{3 \times 4.5}{3 + 4.5}\]

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