conversations.from: human
conversations.value: Can you break down the solution for me for this math problem: Andy is checking to see if all the cars in the parking lot paid for their parking. 75% of the cars have valid tickets, and 1/5th that number have permanent parking passes. If there are 300 cars in the parking lot, how many people tried to park in the lot without paying?
conversations.from: assistant
conversations.value: First find how many cars have valid tickets: 75% * 300 cars = 225 cars
  Then find the percentage of cars with parking passes: 75% / 5 = 15%
  Then multiply that number by the total number of cars to find the number with parking passes: 15% * 300 cars = 45 cars
  Then subtract all the cars with valid forms of parking to find the number parked illegally: 300 cars - 225 cars - 45 cars = 30 cars