Răspuns :
( a + b + c + d + e + f ) / 6 =70
a + b + c + d + e + f = 70 × 6 = 420
( a + b + c ) / 3 = 60
a + b + c = 180
Ma = ( d + e + f) / 3
Ma = ( 420 - 180 ) / 3
Ma = 240 / 3
Ma = 80
Ma - media aritmetica
a + b + c + d + e + f = 70 × 6 = 420
( a + b + c ) / 3 = 60
a + b + c = 180
Ma = ( d + e + f) / 3
Ma = ( 420 - 180 ) / 3
Ma = 240 / 3
Ma = 80
Ma - media aritmetica
(a+b+c+d+e+f)/6=70
(d+e+f)/3=60
a+b+c+d+e+f=70×6=420
d+e+f=60×3=180
Rezulta
a+b+c=420-180
a+b+c=240
(a+b+c)/3=240/3=80
Sper ca te-am ajutat
(d+e+f)/3=60
a+b+c+d+e+f=70×6=420
d+e+f=60×3=180
Rezulta
a+b+c=420-180
a+b+c=240
(a+b+c)/3=240/3=80
Sper ca te-am ajutat