Mathematics, 18.08.2019 10:00, shygrl05

Which pair of ratios form a proportion?
a.
5 : 11 and 6 : 12
b.
7 : 13 and 21 : 39
c.
8 : 14 and 24 : 30
d.
10 : 20 and 20 : 30
me.

Answers: 1

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Which pair of ratios form a proportion?
a.
5 : 11 and 6 : 12
b.
7 : 13...