The mean of x, x + 2, x + 4 and x + 6 is 20. Find x
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Answers
Answered by
1
Answer:
Step-by-step explanation:
So, first of all, the mean is the average of all the numbers.
So,
x, x + 2, x + 4, x + 6
Average= sum of all the numbers
--------------------------------
Number of numbers
= x + x + 2 + x + 4 + x + 6
=4x +12
= 4x + 12 ÷ 7
I think this is the answer, not sure tho, but if it's wrong, at least i explained what mean is right
Answered by
0
Step-by-step explanation:
x,x+2x+4 and +6 is 20
if there is no number before the variable it is 1
so,
1 , 1 + 2x + 4 and + 6
here , & and indicates +
so.
1+1+2x +4+6
1+1+2×x+4+6
1+1+2×1+4+6
2+2+10
14 is the anwer
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