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If the mean of three observations x + 2, x + 4, and x + 6 is 15, then x is equal to a) 12 (b) 13 (c) 15 (d) 11 ​
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11 votes
If the mean of three observations x + 2, x + 4, and x + 6 is 15, then x is equal to

a) 12
(b) 13
(c) 15
(d) 11
​

User Tomer Even
by
3.9k points

2 Answers

10 votes

Answer:

D

Step-by-step explanation

3x+12 divided by 3 multiple by 15

User Tirza
by
3.3k points
8 votes

Answer:

x+2+x+4+x+6/3=15

3x+12=15x3

3x+12=45

3x=45-12

3x=33

x=33/3

x=11

hope it helps u

User Anit Kumar
by
3.9k points
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