Multiple choice questions in primary school mathematics
In the following equation, A and B are inversely proportional ()
A.2a = 5 b.a× 7 = 3 b.c.a× 3 b = 5。
Hello! Choose c for this question.
A.2a=5b，a: b = 5: 2。 (proportional) B.ax7=b/3, that is, ax7=bx 1/3, and a: b = 1/3: 7 (proportional) C.axb/3=5. Axb= 15 (inverse proportion) can be calculated. So choose C.