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Verified answer
FISIKA INTI• radioaktivitas
T = 2 hati
Nₜ = Y
Nₒ = X
t = 8 hari
Nₜ = Nₒ • (½)^(t/T)
Y = X • (½)^(8/2)
Y = X • ⅟₁₆
X : Y = 16 : 1 ✔️