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Beneath Earth's surface, the temperature increases10 degrees Celsius every kilometer. Suppose that the surface temperature is 22 degree Celsus, and the temperature at the bottom of a gold mine is 45 degree Celsius. What is the depth of the gold mine? Define a variable and write an equation. Then solve.
4 years ago

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oobleck
t = 22 + 10x
now find x when t=45
4 years ago

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