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A thermometer is taken from a room where the temperature is 23oC to the outdoors, where...

A thermometer is taken from a room where the temperature is 23oC to the outdoors, where the temperature is −1oC. After one minute the thermometer reads 15oC.
(a) What will the reading on the thermometer be after 5 more minutes?

(b) When will the thermometer read 0oC? ________ minutes after it was taken to the outdoors.

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