Question

If the mean of 3, 1, 5,x and 9 is 4, then the value of x is

Answer 1

Step-by-step explanation:

from the given question we can right it the equation as 3 +1+5+9+x/number of terms

18+x/5=4

18+x=4*5

18+x=20

x=20-18

x=2

keep in mind to always to do multiplication first