16-01-2020
Mathematics

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The mean temperature for the first 4 days in January was 1°C.
The mean temperature for the first 5 days in January was 3°C.
What was the temperature on the 5th day?

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elliecrofts66 elliecrofts66

16-01-2020

11°C because 1+1+1+1=4. 4/4=1.
So you do 3x5=15 which is how much the temperatures over the five days will add up to and then do 15-4 =11°

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