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Calculati media aritmetica a numerelor a]2x;5x;11x b]21x;37x;32x; va rog ajutatima repede!!!!!

Răspuns :

a)M_a=(2x+5x+11x):3=>M_a=18x:3=>M_a=6x
b)M_a=(21x+37x+32x):3=>M_a=90x:3=>M_a=30x
Media aritmetică= (2x+5x+11x)/2=18x/2=6x

Media aritmetică = (21x+37x+32x)/2=90x/2=30 x