Question

If the average of 3,5 and m is 10, what is the value of m?

Answer 1

To find the average add up all the numbers and divide the total by the amount of numbers you added up.

Your equation would look like:
`(3 + 5 + m)/(3) = 10`

`(8 + m)/(3) = 10`

Multiply both sides by 3.

8 + m = 30

Subtract 8 from both sides.

`\boxed {m = 22}`

Answer 2

10 = (3 + 5 + m) / 3 (by the definition of the average)

8 + m = 3*10
m = 30 - 8

m = 22 answer