Question

If the mean of 8,5,7,x and 10 is 9 find the value of x

Answer 1

Answer:

x=15

Step-by-step explanation:

(8+5+7+10+x)÷5=mean=9

so,(30+x)÷5=9

so,30+x=9×5

so,30+x=45

so,x=45-30

=15

Answer 2

hlo mate ✌️

Given :

mean of 8, 5 , 7, x , 10 = 9

So

mean = sum of observation/ no. of observations

Mean = 8+5+7+x+10 /5 = 9

--> 23 + 7 + x / 5= 9

--> 23 + 7+ x = 45

--> 30 + x = 45

--> x = 15

Hope it helps ❣️