the mean of 5,7,8,10 and 2x is x then find the value of x
Answers
Answered by
2
Answer:
-30
Step-by-step explanation:
= 5+7+8+10+2x=x
=30+2x=x
=2x-x=30
=x=-30
Answered by
4
Answer:
x=10
Step-by-step explanation:
mean =sum of observations/number of observations
mean =x
therefore;5+7+8+10+2x/5=x
30+2x=5x
3x=30
x=30/3
x=10
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