Question 650320
Mike drove to a friends house at a rate of 40 miles mph. The return trip he traveled at a rate of 45 mph. Total driving time was 4 hours. What is the distance Mike traveled?
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Avg speed for the round trip = 2*40*45/(40 + 45)
= 720/17 mi/hr
RT distance = (720/17)*4 = 2880/17 miles