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I'm taking an online class and my teacher is less then helpful :(

I'm having trouble with one of the questions and the textbook doesn't have any similar examples. I've solved part A, but I'm unsure how to set up part B. Any assistance would be greatly appeciated!!! Thank you

So here's the question:

A person makes a trip by car between 2 cities. A record of the trip follows: 30.0 min at 80km/h, 12 minutes as 100km/h, 45 min at 40km/h and 15 min for lunch break and gas.

a. determine the average speed for the trip.

b. determine the distance between the cities

So for part a, i calculated that the average speed for the trip is 86.9km/h, and i'm happy with that answer.

but for part b, i'm not sure how to set it up.

total time for the trip is 102 minutes (or 1.7 hours) but that includes the break.. Is that information about the break even useful or is it in there to mix me up?

Without the break, the total time of the trip is 87 minutes (or 1.45 hr) but I dont know how to organize it so that I can figure out how far the cities are apart?

I think I have to include my answer from part A, with the average speed being 86.9km/h.. ANy ideas? Thanks

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# Determining Distance

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