the temperature of town A at 4 pm was 41 degrees above zero. The temperature recorded at10 pm was 29 degree C. If the temperature falls at a constant rate per hour, find the fall in temperature per hour. Please Explain!

 difference of the temprature = 41-29 = 12 

difference of the time  = 10 pm - 4pm = 6 hours

temperature fall at a constant rate per hour ,so fall temperature per hour is = 12/6 = 2'C  per hour

                                                                                                                                             

                                                   

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