Posted by Jacky on Sunday, November 11, 2012 at 3:00pm.
change each time to hrs..
then figure each distance segement
distance1=90.7km/hr (36.5/60 hr)=...
then do all the distances that way.
add the distances to get time total distance
a nice second question is what was the average speed for the trip:
avg speed=totaldistance/totaltime
ally travels by car from one city to another. She drives for 23.0 min at 80.0 km/h, 31.0 min at 35.0 km/h, and 31.0 min at 19.0 km/h, and she spends 5.0 min eating lunch and buying gas.
(a) Determine the average speed for the trip.
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