Answer:
5
Explanation:
1 ,3 ,0, 6 ,x
To find the mean, we add them all up and divide by the number of numbers
(1+3+0+6+x) / 5 = 3
Multiply each side by 5
(1+3+0+6+x) / 5 *5= 3*5
(1+3+0+6+x) = 15
Combine like terms
10+x = 15
Subtract 10 from each side
10+x-10=15-10
x = 5