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MIT 21F Spanish I - IV (OCW) 9 Online
OpenStudy (anonymous):

The Johnson's are moving to another house. It's takes dad 5 hours to pack all the boxes and it takes 3 hours for mum to pack them. If mom and dad work together, how many hours will it take them to pack all the boxes?

OpenStudy (anonymous):

what would be a rational equation for that?

OpenStudy (anonymous):

This question, has nothing to do with spanish.

OpenStudy (kc_kennylau):

\[\Huge\frac1{\frac15+\frac13}\mbox{ hours.}\]

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