The mean of 7,9, x + 3, 12, 2x – 1 and 3 is 9. Find the value of x.
Answers
Answered by
1
Answer:
Hope it helped you,
Step-by-step explanation:
Given mean of 7,9,x+3,12,2x−1,3 is 9
i.e.,
6
7+9+x+3+12+2x−1+3
=9
⇒3x+33=54
⇒3x=21
⇒x=
3
21
=7
∴ value of x=7
Answered by
1
Answer:
x = 7
Step-by-step explanation:
Mean ={7+9+x+3+12+2x-1+3}/6
9*6=16+15+2+3x
54=33+3x
54-33=3x
21/3 =x
7=x
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