Kunci Jawaban Matematika Kelas 8 Semester 2 Halaman 310, Uji Kompetensi Bab 10: Soal Esai Part 2

n(b) = b

s = merah + hijau + kuning + biru

s = 15 + 14  + 13 + b

s = 42 + b

P(b) = n(b) / s

8/29 = b / (42 + b)

8 x (42 + b) = b x 29

8b + 336 = 29b

21b = 336

b = 336 / 21

b = 16

P(hijau) = n(hijau) / s

= 14 / (15 + 14  + 13 + b)

= 14 / (15 + 14  + 13 + 16)

= 14 / 58