Jawab:
B
Penjelasan dengan langkah-langkah:
11.00 - 07.00 = 4 jam
[tex]\displaystyle K(t)=K_0(80\%)^t\\=100\left ( \frac{80}{100} \right )^4\\=100\left ( \frac{4}{5} \right )^4\\=100\left ( \frac{256}{625} \right )\\=40,96~\mathrm{mg}[/tex]
Dik :
Dit :
Dijawab :
t = 11.00 - 07.00
= 4 jan
t = 4
k(4) = 100.(80%)⁴ mg
= 100.(0, 4096) mg
= 40,96 mg
jadi, pada pukul 11.00 , tersisa 40,96 mg
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Verified answer
Jawab:
B
Penjelasan dengan langkah-langkah:
11.00 - 07.00 = 4 jam
[tex]\displaystyle K(t)=K_0(80\%)^t\\=100\left ( \frac{80}{100} \right )^4\\=100\left ( \frac{4}{5} \right )^4\\=100\left ( \frac{256}{625} \right )\\=40,96~\mathrm{mg}[/tex]
Dik :
Dit :
Dijawab :
t = 11.00 - 07.00
= 4 jan
t = 4
k(4) = 100.(80%)⁴ mg
= 100.(0, 4096) mg
= 40,96 mg
jadi, pada pukul 11.00 , tersisa 40,96 mg