Question

Tolong jawab soal mtk saya

Answer 1

Verified answer

Misal nilai ulangan keenam = x
maka :

rata-rata = jumlah ulangan/banyaknya ulangan
8 = (7 + 8 + 6 + 8 + 9 + x)/6
8 = (38 + x)/6
8 × 6 = 38 + x
48 = 38 + x
x = 48 - 38
x = 10
Jadi nilai ulangan keenam Andika adalah 10