Question

Find x
14.5, -8, -4.5, x; The mean is 9.5. ​

Answer 1

x = 36

Explanation:

multiply 4 and 9.5 to get the total amount.

38 = 14.5 + (-8) + (-4.5) + x; hence x is 36.

Answer 2

Answer: x=36

Explanation:

To solve this question, we first want to know what mean is. Mean is the same as the average. You take the sum and divide it by the amount. Since we know there are 4 numbers and the mean, we can easily find the value of x.

`(14.5-8-4.5+x)/(4) =9.5` [multiply both sides by 4]

`14.5-8-4.5+x=38` [combine like terms]

`2+x=38` [subtract both sides by 2]

`x=36`

Now, we know that x=36.