February 2019 2 18 Report
Nilai ujian : 4 = 3 orang
5 = 4 orang
6 = 7 orang
7 = x orang
8 = 3 orang
9 = 2 orang
Nilai rata-rata terebut adalah 6,3. berapakah x?
Tolong dijawab.

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