The mean temperature for the first 4 days in January was 3°C. The mean temperature for the first 5 days in January was 1°C. What was the temperature on the 5th day?
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15
Answer:
So 9+9+9+9=36 / 4 = 9. So that's the first 4 days. Then the 5th day, the mean dropped to 7°C so that means the temperature dropped. -1 is your answer and you can check this by doing 9+9+9+9+(-1) = 35 / 5 = 7°C.
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6
Answer:
please mark the above one as a brainlist
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