conversations.from: human
conversations.value: Can you walk me through the solution of: Samuel is driving to San Francisco’s Comic-Con in his car and he needs to travel 600 miles to the hotel where he made a reservation. At first, he drives at 50 miles/hour for 3 hours straight, then he speeds up to 80 miles/hour for 4 hours. How far is he from the hotel?
conversations.from: assistant
conversations.value: At first at 50 miles/hour he travels 50 miles/hours*3 hours=150 miles.
  After that, he speeds up, traveling 80 miles/hours*4 hours= 320 miles.
  He travels a total of 150 miles+320 miles=470 miles.
  He is 600–470=130miles from the hotel.