Question

Let please help me please​

Answer 1

p = 170

Setting up the formula:

The mean is the sum of the digits divided by the total digits in the set.

`\rightarrow \frac{\text{Sum of digits}}{\text{Total digits}} = \text{Mean}`

`\rightarrow \frac{\text{Sum of digits}}{\text{Total digits}} = 39` [Mean = 39]

`\rightarrow \frac{25 + p}{\text{Total digits}} = 39` [Sum of digits = 25 + p]

`\rightarrow (25 + p)/(5) = 39` [Total digits = 5]

Step-by step calculations:

Use cross multiplication:

`\rightarrow 25 + p= 39 * 5`

Simplify the RHS:

`\rightarrow 25 + p= 39 * 5`

`\rightarrow 25 + p= 195`

Subtract 25 both sides:

`\rightarrow p = 195 - 25`

`\rightarrow p = 170`