SOLUTION: A trucker drove an average of 40 mph for the first 4 hours. for the next 6 hours which completed his route, he averaged 55mph, what is the average speed for the whole trip?

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Question 920437: A trucker drove an average of 40 mph for the first 4 hours. for the next 6 hours which completed his route, he averaged 55mph, what is the average speed for the whole trip?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
A trucker drove an average of 40 mph for the first 4 hours.
for the next 6 hours which completed his route, he averaged 55mph,
what is the average speed for the whole trip?
:
From the information given, we can find the total distance and total time
4(40) + 6(55) = 490 miles in 10 hrs
Av speed = dist/time:
av = 490%2F10
av = 49 mph for the whole trip