The average temperature for the months of September to December in Medicine Hat, Alberta, one year were 15⁰C, 1⁰C, and -8⁰C. What was the average temperature for the four months?

2.66⁰C or roughly 3⁰C

Step-by-step explanation:

We are missing one value in this question but can solve this problem using the same process. Since we are given the average temperatures of each month, to find the average temperature of all the four months combined we would simply need to add these provided averages and then divide by the total number of months. Since we are missing one value here, in this scenario we would only add the three values and divide by 3.

(15 + 1 + (-8)) / 3 = x

8 / 3 = x

2.66 = x

So the average temperature is 2.66⁰C or roughly 3⁰C

the answer is d

step-by-step explanation:

y+3=-4(x-2)

y+3=-4x+8

  -3         -3  

y=-4x+5