Question

If the arithmetic mean of x, x+3, x+6, x+9 and x+12is 10 then x is

Answer 1

Step-by-step explanation:

x = 10

I hope this will help you ⭐

Answer 2

Answer:

X=8.5

Step-by-step explanation:

arithmetic mean =(a+b)/2

10= x+(x+3)/2

20=2x+3

20-3=2x

17=2x

x=8.5