carsonjohnsonn
28.09.2019 •
Mathematics
The mean of a set of four numbers is 3.5. if a fifth number, x, is added to the data set the mean becomes 4. what is the value of x.
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Ответ:
(14 + x) / 5 = 4
14 + x = 20
x = 6
Ответ:
i think it is 12.04... uh i hope its right