Question

Determine a média ponderada com sais respectias pesos. 7,2; 1,4; e 3,1
com pesos 2; 3 e 5

Answer 1

Bom dia,

$\dfrac{7,2\cdot2 + 1,4\cdot3+3,1\cdot5}{10} \\\\\dfrac{14,4 + 4,2 + 15,5}{10}\\ \\\dfrac{34,1}{10} \mapsto \fbox{3,41}$

Abraços!

Answer 2

resolução!

MP = 2(7,2)+3(1,4)+5(3,1) / 10

MP = 14,4 + 4,2 + 15,5 / 10

MP = 34,1 / 10

MP = 3,41