conversations.from: human
conversations.value: I would love to understand how to solve this problem: From March to August, Sam made $460 doing 23 hours of yard work. However, from September to February, Sam was only able to work for 8 hours. If Sam is saving up to buy a video game console that costs $600 and has already spent $340 to fix his car, how many more hours does he need to work before he can buy the video game console?
  Can you explain?
conversations.from: assistant
conversations.value: Sam makes $460 / 23 hrs = $20/hr.
  From September to February, Sam made 8hrs x $20/hr = $160.
  From March to February, Sam made a total of $460 + $160 = $620.
  After fixing his car, he was left with $620 - $340 = $280.
  Sam needs another $600 - $280 = $320.
  Sam needs to work another $320 / $20/hr = 16 hours.