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Mathematics 28 Online
OpenStudy (anonymous):

The distance walking a marathon at a constant speed is directly proportional to the time of walking. If Martha walked 9 miles in 3 hours, how many miles will Martha walk in 5 hours at the same constant speed?

OpenStudy (infiniite):

First figure out how many miles she walked in 1 hr: You know that she walked 9 miles in 3 hours And you also know that she's walking at a constant rate.

OpenStudy (anonymous):

Got it.

OpenStudy (infiniite):

Yep! :)

OpenStudy (anonymous):

Thank you!

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