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Emily traveled uphill to the hardware store for 60 minutes at just 6mph she then traveled back home the same path downhill at a speed of 12 mph what is her average speed for the entire trip

User Fourj
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The trip home at twice the speed took half as long. She traveled the whole 12 miles in 1.5 hours, so had an average speed of ...
(12 mi)/(1.5 h) = 8 mi/h
User LMeyer
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