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20 April, 20:42

at 7 p. m. last night, the temperature was 10 degree. at 7 a. m. the next morning the temperature was - 2 degree. By how much did the temperature change from 7 p. m. to 7 a. m.? By how much did it changed each hour?

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Answers (2)
  1. 20 April, 22:21
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    Change in temperature = - 2 - 10 = - 12 degrees

    rate of change per hour = - 12 / 12 = - 1 degree.
  2. 21 April, 00:05
    0
    The temperature changed by 12 degrees in 12 hours meaning one degree per hour.
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