QUIZ
Pakau cara ya kak
Pakau cara ya kak
Penjelasan dengan langkah-langkah:
Misal:
guru = a
dosen = b
Mean = ((a + 35) + (b + 50))/(a + b)
40 = ((a + 35) + (b + 50))/(a + b)
40(a + b) = 35a + 50b
40a + 40b = 35a + 50b
40a - 35a = 50b - 40b
5a = 10b
a = 2b
a/b = 2b/b
a/b = 2/1
a : b = 2 : 1
Guru : Dosen = 2 : 1 (B)
[answer.2.content]
