Question

The mean temperature for the first 7 days in January was 4 °C.

The temperature on the 8th day was 5 °C.
What is the mean temperature for the first 8 days in January?

PLEASE HELP ME WITH THIS. ANYONE

Answer 1

28 i think im only 11 so plz dont get mad if i got it wrong

Answer 2

4. 125° C

the mean is calculated as

mean =
`(sum)/(count)`

here the mean = 4 and the count = 7, calculate the sum

4 =
`(sum)/(7)` (cross- multiply )

sum = 4 × 7 = 28

for 8 days add 5 to the sum and divide by 8 for the mean

sum = 28 + 5 = 33

mean =
`(33)/(8)` = 4.125° C