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I more like my high school math teacher explanation: "Put your one hand on dry ice, another in the boiling water. On average, you feel warm and cozy"

Except dry ice is -100 and boiling water is 200 so you feel hot and not cozy.

You're just adding the temperatures, you then need to divide by 2 to get the average - so it's actually 51.35 fahrenheit (10.75 celsius).

American education