Question

The average of 8,10,x and 9 is 8.5. Find x

Answer 1

Answer:

7

Step-by-step explanation:

We know that Average = Sum of the Numbers/No. of Numbers. So let's find the value of x using transposing method.

8+10+9+x/4=8.5

27+x/4=8.5

27+x=8.5*4

27+x= 34

x=34-27

x = 7

Please mark my answer as Brainlist.