Question

the mean of 4,9,10and x is 8​

Answer 1

Answer:

The value of x is 9.

Explanation:

Mean= $\frac{sum \: of \: the \: quantites}{number \: of \: quantities}$

Here, Mean is 8.

8= $\frac{4 + 9 + 10 + x}{4}$

=> 8= $\frac{23 + x}{4}$

=> 8×4=23+x

=> 32= 23+ x

=> 32-23 = x

=> 9 = x.

Hope it helps u....!!!