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The temperature of a city changed by -20 degrees Celsius over a 4-week period.

The temperature changed by the same amount each week

 

Part A: Write a 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.

 Jul 22, 2019
 #1
avatar+26006 
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Temp in city for weeks 1-4 =  Starting temp - (20 deg C / 4 wk) * wk#   

 

Temp in City for weeks 1-4 = starting temp - 5 deg c/wk  * wk#

 

This shows the temperature in the city for weeks 1 2 3 4  given the original temperature of the city and whichever week you want to know from the starting point....week 1   week 2   week 3   week 4 .....

 Jul 22, 2019
 #2
avatar+1014 
+1

Thanks 

Nickolas  Jul 22, 2019

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