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Mathematics, 24.09.2020 22:01 rebekahwirogo

On the coldest night in North Ice, Greenland, the temperature dropped from 0°C to −21°Cin 7 hours. What is the average temperature change per hour? Enter your answer in the box.

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On the coldest night in North Ice, Greenland, the temperature dropped from 0°C to −21°Cin 7 hours. W...
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