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Mathematics, 19.02.2021 01:20 demeckoferguson

If the temperature is -20 °F at 6:00 a. m., school will be cancelled for the day. The temperature is 10 °F at 9:00 p. m. What must the change in temperature be in order for school to be cancelled the next day?

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If the temperature is -20 °F at 6:00 a. m., school will be cancelled for the day. The temperature is...
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