Question

Aflati media aritmetica numerelor:
10,3 si 9,8

1 întreg 1 supra lu 7 si 2 întreg 3 supra lu 7

3,8; 3,9; 4,3

Answer 1

1)$\frac{10.3+9.8}{2} = \frac{20.1}{2} =10.05$
2)1$\frac{1}{7} = \frac{8}{7}$
2)$\frac{3}{7} = \frac{17}{7}$
$\frac{8}{7}+ \frac{17}{7} = \frac{25}{7}$
Fiind 2 termeni inseamna supra 2==>25:7:2=25*2:7=7.14
3)$\frac{3,8+3.9+4.3}{3} = \frac{12}{3} =4$