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10 Nov 2019
Marlene rides her bicycle to John's house and comes home by thesame route. On flat ground, she travels at a constant speed of 9mph. Her uphill speed is a constant 6mph. Her downhill speed is aconstant 18 mph.
Marlene's total riding time is 2 hours. How far isit to John's house?
Marlene rides her bicycle to John's house and comes home by thesame route. On flat ground, she travels at a constant speed of 9mph. Her uphill speed is a constant 6mph. Her downhill speed is aconstant 18 mph.
Marlene's total riding time is 2 hours. How far isit to John's house?
Bunny GreenfelderLv2
17 Jan 2019