SOLUTION: If I drive 80 kilometers in 2 hours and then 60 kilometers in 5 hours, what was my average speed in kilometers per hour over the two trips?

SOLUTION: If I drive 80 kilometers in 2 hours and then 60 kilometers in 5 hours, what was my average speed in kilometers per hour over the two trips?

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Question 224525: If I drive 80 kilometers in 2 hours and then 60 kilometers in 5 hours, what was my average speed in kilometers per hour over the two trips?
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
Your total distance was 140 km and the total time was 7 hrs.
Therefore, the average speed for the total trip was r=D/t=140 km/7 hr= 20 km/hr.

R^2
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