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

User Anthony Hilyard
by
2.6k points

2 Answers

23 votes
23 votes

Answer:

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 :)

User Antoine Pelletier
by
3.0k points
21 votes
21 votes

Answer:

-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.

User DannyPhantom
by
2.8k points