Question

URGENT AM NEVOIE PE MAINE :Aflati media aritmetica a numerelor:
a) 1supra 6 ; 2supra 9 ; 3supra 4
b)3supra 7; 1supra 5 ; 2 ; 6
c)1 ; 2 ; 0 ; 15 ; 3 ; 4  
d)1 ; (5) ; 0 ; 1(5) ; 1,5

Answer 1

a)
Ma=( 1/6+2/9+3/4) : 3=(6/36+8/36+27/36): 3=41/36*1/3= 41/108
b)
Ma=(3/7+1/5+2+6) :4=(3/7+1/5+8) : 4=(15/35+7/35+280/35) : 4=302/35 *1/4=
=151/70
c)
Ma=(1+2+0+15+3+4) : 6= 25/6
d)
Ma= (1+ 0,(5)+0+1,(5)+1,5): 6=(1+5/9+14/9+3/2) :6=(18/18+10/18+28/18+
27/18):6=83/18*1/6=83/108