SOLUTION: If you traveled in a car for 45 miles at 30 mph and then traveled for 90 miles at 45 mph, how much time did your total trip take? What is your average speed?

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Question 998123: If you traveled in a car for 45 miles at 30 mph and then traveled for 90 miles at 45 mph, how much time did your total trip take? What is your average speed?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
If you traveled in a car for 45 miles at 30 mph and then traveled for 90 miles at 45 mph, how much time did your total trip take?
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Find the times for the 2 segments.
t = d/r
Add them.
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What is your average speed?
Divide the total miles by the total hours.