If the mean of x. x+2. +4.x+6 and x+8 is 11. what is the average of th

1.	If the mean of x. x+2. +4.x+6 and x+8 is 11. what is the average of the lastthree numbers?(1) 1 (2) 13 (3) 14 (4) 15
Answer» ANSWER: (X)+(x+2)+(x+4)+(x+6)+(x+8) /5 = 11 5x+20 = 55 5x = 35 x = 7 the numbers are 7,9,11,13,15 average = 11+13+15/3 = 24+15/3 39/3 = 13

If the mean of x. x+2. +4.x+6 and x+8 is 11. what is the average of the lastthree numbers?(1) 1 (2) 13 (3) 14 (4) 15

Answer»

ANSWER:

(X)+(x+2)+(x+4)+(x+6)+(x+8) /5 = 11

5x+20 = 55

5x = 35

x = 7

the numbers are 7,9,11,13,15

average = 11+13+15/3 = 24+15/3

39/3 = 13

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If the mean of x. x+2. +4.x+6 and x+8 is 11. what is the average of the lastthree numbers?(1) 1 (2) 13 (3) 14 (4) 15​

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If the mean of x. x+2. +4.x+6 and x+8 is 11. what is the average of the lastthree numbers?(1) 1 (2) 13 (3) 14 (4) 15