SOLUTION: A person takes a trip, driving with a constant speed 94 km/h except for a 80 min rest stop. If the person's average velocity is 78 km/h, how far is the trip? Answer in units of km.

Question 758858: A person takes a trip, driving with a constant speed 94 km/h except for a 80 min rest stop. If the person's average velocity is 78 km/h, how far is the trip? Answer in units of km.

Found 2 solutions by josgarithmetic, josmiceli:
Answer by josgarithmetic(39614) (Show Source): You can put this solution on YOUR website!
ACTIVITY____________rate________time hours____distance km.
DRIVING______________94________(h)___________94h
RESTING______________0_________(1&1/3)_________0

Total distance divided by total time gives the average rate:

Solve for h= time in hours, and then you can compute the value for distance, 94h.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = time for trip in hrs while driving
Average speed = ( total distance ) / ( total time )
Average speed = km/hr
Total distance =
Total time =
Total Time =
----------------------------
Now I can say:
Average speed =

The time spent driving is hrs

The trip is 611 miles
check:
Average speed = ( total distance ) / ( total time )

OK

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