Jawabanmu

2014-01-20T21:08:35+07:00
20/8 = 2/b
16 = 20b
b = 20/16
b = 1,25

maaf kalo rumus nya kurang jelas
Jawaban paling cerdas!
2014-01-20T21:18:53+07:00
20/8=b/2
2,5=b/2
b=5

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