Question

Calculati media aritmetica 3,7 si 0,5 si1,8 Calculati 3.2 x {2,7x3,5+2x[5-0,1x(2+1:0,5)]}

Answer 1

m.a.=(3.7+0.5+1.8):3=6:3=2
3.2x[9.45+2x(5-0.1x4)]
3.2x(9.45+2x4.6)
3,2x(9.45+9.2)
3.2x18.65
59.68

Answer 2

$\frac{3,7+0,5+1,8}{3} = \frac{6}{3} =2$

$3,2[9,45+2(5-0,1*4)]= \\ 3,2(9,45+2*4,6)= \\ 3,2*(9,45+9,2)= \\ 3,2*18,65= \\ 59,68$