Question

If the mean of 2x+3,3x+4, x+7, x+3, 4x-7 is 13. Find value of x:
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Answer 1

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Answer 2

Answer:

x = 5

Step-by-step explanation:

sum of the observation

= 2x+3 + 3x+4 + x+7 + x+3 + 4x-7

= 11x + 10

number of terms

n = 5

mean = sum of the observation / number of terms

13 = 11x + 10 / 5

13 * 5 = 11x + 10

65 = 11x + 10

65 - 11 = 11x

55 = 11x

x = 55 / 11

x = 5