Question

Urgente porfavooor!!! Se sabe que A, B y C representan 3 magnitudes tales que:
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valores
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A 10 8 8 X 8
B 3 24 3 3 6
C 50 4 32 18 Y

Calcular X+Y

Answer 1

veamos los promedios de

prom A = (10 + 8 + 8 + X + 8)/5

prom B = (3 + 24 + 3 + 3 + 6)/5 = 39/5

prom C = (50 + 4 + 32 + 18 + )/4

del prom A:
(10 + 8 + 8 + X + 8)/5 = 39/5

10 + 8 + 8 + X + 8 = 39

X = 5

that is the unknown value