Question

Calculati media aritmetica a nr
a ) 0,015 ; 3 ; 3,475 ; 2 ; 11 ; 12 si 74 ,5 b ) 7 , (6) ; 0 , (7) ; 81 , (5)

Answer 1

ma=(0,015; 3; 3,475;2;11;12;74,5)
ma=0,015+3+3,475+2+11+12+74,5=3853,5153
ma=3853,5153:8
ma=481,6894125

Answer 2

1 . a ) 0, 015 + 3 + 3 ,475 + 2 + 11 + 12 + 74 .5 =
           = 6 , 49 + 25 + 74 .5 = 
            = 105 .99 
b ) 7 .( 6) = ( 76 - 6 ) /9 
     0 . ( 7 ) =  ( 7 / 9 ) 
     81 . ( 5 ) = ( 815 - 81 ) /9 
  
Sper ca te-am ajutat !!