Matematika Sekolah Menengah Pertama tolong bantu dong ... melanyemmerichulv – March 08, 2023 tolong bantu dong ... [tex]rata - rata \: gabungan \\ \frac{n1x1 + n2x2}{n1 + n2} \\ \\ \frac{8 \times 65 + 12 \times 72}{8 + 12} \\ \\ \frac{520 + 864}{20} \\ \\ \frac{1384}{20} = 69.2[/tex] [answer.2.content]
