Question

Tolong diselesaikan kak beserta caranya

Answer 1

Verified answer

Misalkan ayam mula-mula = a
maka :
Minggu I = a - (a × 10%)
Minggu I = a - 10a%
Minggu I = 100a% - 10a%
Minggu I = 90a%

Minggu II = 90a% - (90a% × 10%)
Minggu II = 90a% - 9a%
Minggu II = 81a%

Minggu III = 81a% - (81a% × 10%)
Minggu III = 81a% - 8,1a%
Minggu III = 72,9a%

Minggu IV = 72,9a% - (72,9a% × 10%)
Minggu IV = 72,9a% - 7,29a%
Minggu IV = 65,61a%

maka didapat :
65,61a% = 197
65,61a/100 = 197
65,61a = 197 × 100
65,61a = 19700
a = 19700/65,61
a = 300,25911
a = 300

Jadi jumlah ayam Tias mula-mula adalah 300 ekor

Answer 2

Verified answer

Ht = 197
r = 10 % perminggu
t = 1 bulan = 4 minggu

Ht = H(1-r)^t
197 = H(1-10%)^4
H = 197 / 0,6561
H = 300