Respuesta :

mhanifa

Answer:

  • a) 50, b) -40, c) 3

Step-by-step explanation:

Arithmetic mean is the average of the numbers.

  • a) (40 + 60)/2 = 100/2 = 50

  • b) (- 60 - 20)/2 = - 80/2 = - 40

  • c) (7/3 + 11/3)/2 = (18/3)/2 = 6/2 = 3
ItzTds

Formula we use is,

→ Mean = (x + y)/2

a) 40 and 60 = ?

→ (40 + 60)/2

→ 100/2 = 50

Thus, the mean is 50.

b) -60 and -20 = ?

→ (-60 - 20)/2

→ -80/2 = -40

Thus, the mean is -40.

c) (7/3) and (11/3) = ?

→ ((7/3) + (11/3))/2

→ (18/3)/2

→ 6/2 = 3

Thus, the mean is 3.

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