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The temperature of a city changed by a total of −15 degrees Celsius over a 5-week period. The temperature changed by the same amount each week.

Part A: Write an expression to show the average change in the temperature of the city each week. 

 

 

Part B:Simplify the expression and explain, using words, what your answer means.

 Jan 13, 2022
 #1
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average weekly chang in temp  = total change / no of weeks = -15/5 = -3

 

You can think about the rest

 Jan 13, 2022
 #2
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For Part A:

     Average change = -15/5 = -3°C/1 week

For Part B: 

     expression =  △T = -3°C/week

     It means that the temperature falls down 3°C per week

 Jan 14, 2022

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