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11 December, 15:36

Tarting at home, Emily traveled uphill to the hardware store for 60 minutes at just 6 mph. She then traveled back home along the same path downhill at a speed of 12mph. What is her average speed for the entire trip from home to the hardware store and back?

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  1. 11 December, 15:44
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    6+12=18

    18:2=9

    Emilys average speed is 9mph
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