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Mathematics
OpenStudy (anonymous):

Jake and Amanda drove for 9 hours against a wind speed of 8 mph. Traveling with the same wind speed, it took them 7 hours to make the return trip. How fast were they traveling in still air?

OpenStudy (anonymous):

9 * (x - 8) = 7 * (x + 8)

OpenStudy (anonymous):

Thank You!

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