Question

the answer is 10.6°C, how?

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Answer 1

Step-by-step explanation:

Avarage temperature = sum/Total

sum = Avarage × Total

sum of 1 week = 8 × 7 = 56°C

Avarage of 4 days = sum/ total

sum = 6×4 = 24°C

So,avarage temperature of 3 days should be 56 - 24 = 3x

x= 10.6

Answer 2

so first you form an equation

x=the temp. of the last 3 days

4(6) + 3(x)/7=8

24 + 3x/7=8/1

24+3x=56

3x=56-24

x=32/3

x=10.6 degrees celsius