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the temperature outside at 5:00am was -18 degrees. By 9:00 am, the temperature had risen 14 degrees. At noon, the snow started so the temperature dropped 6 degrees. By 4:00pm, the temperature had risen 9 degrees. What was the temperature at 4:00pm?

1 answer

Let's break down the temperature changes step by step:

  1. Initial temperature at 5:00 AM: -18 degrees.
  2. By 9:00 AM: The temperature rises by 14 degrees. \[ -18 + 14 = -4 \text{ degrees} \]
  3. At noon: The temperature drops by 6 degrees due to snow. \[ -4 - 6 = -10 \text{ degrees} \]
  4. By 4:00 PM: The temperature rises by 9 degrees. \[ -10 + 9 = -1 \text{ degree} \]

Thus, the temperature at 4:00 PM was -1 degree.