conversations.from: human
conversations.value: I need a clearer understanding of how to solve: Crackers contain 15 calories each and cookies contain 50 calories each. If Jimmy eats 7 cookies, how many crackers does he need to eat to have consumed a total of 500 calories?
conversations.from: assistant
conversations.value: He has consumed 7 * 50 = 350 calories from the cookies.
  He needs to consume 500 - 350 = 150 more calories.
  He should eat 150 / 15 = 10 crackers.