Mathematics, 21.06.2019 21:10, koolgurl2003

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?

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Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. sh...