Question

Which is the value of x, If sum of terms ∑x = 5x + 20, N = 5 and mean (X) = 11?
the answer is 8 but how please explain!!! I will follow you if you explain, promise

Answer 1

Answer:

7

Step-by-step explanation:

Summation x = Mean × N

= 11 × 5

= 55

Substituting the value of summation x in the equation

Summation x = 5x + 20 ,

55 = 5x + 20

5x = 55 - 20

= 35

x = 35/5

= 7

THEREFORE x = 7 .

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