Question

Calcule a média aritmética de:

a)2,5;5,0;3,5 e 8
b)7,-5 e 10

Answer 1

a)2+5+5+0+3+5+8=28÷7=4 espero ter ajudado B)7-5+10=12÷3=4

Answer 2

$\sf  \color{green}{Olá,Geici!!}$

A = $\sf 7x = (2 + 5) + (5 + 0) + (3 + 5) + 8 \\\sf 7x = (7 + 5) + (8 + 8) \\\sf 7x = 12 + 16 \\\sf 7x = 28 \\\sf x = 28/7 \\\sf \purple{x = 4}$

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B = $\sf 3x = 7,-5,10 \\\sf 3x = 7 + 10 ( - 5) \\\sf 3x = 17( - 5) \\\sf 3x = 17- 5 \\\sf 3x = 12 \\\sf x = 12 /3 \\\sf \purple{x = 4}$

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$\sf  \pink{Att'DiabinhaAK}$