Question

If the means of 4,6,9,Y, 16 and 19 is 13, what is the value of y​

Answer 1

14

Explanation:

To get the mean, you have to add all the numbers together, and then divide them by how many numbers there are. Here, i'll show you.

There are 6 numbers, including
`Y`, which we need to find out.

The Equation:
`(4+6+9+Y+16+19)/(6) = 13`

• We can simplify this equation into,
  `(54 + Y)/(6) = 13`

To find
`Y\\`, we can do the inverse, and multiply
`13` by
`6`.

(The 6 on the left side of the equation is then cancelled out)

• 
  `(54+Y)/(6) = 13` becomes
  `54 +Y =13` ×
  `6\\`

• 
  `13` ×
  `6 = 78` so then
  `54 + Y = 78`

For this final equation to be true,
`Y` would have to equal
`14`.

Hope the rest of your math goes well :)

Answer 2

-246

Explanation:

Add all the numbers together and divide by the amount of numbers added to find the mean. -246 is the only right answer.