September 2018 2 17 Report

Wyznacz niewiadomy wyraz proporcji.

a) 5½ : a = 2¾ : 3

b)16 : 3⅗ = a : 1,2

c) a : 0,3 = 3,6 : 2⅖

d) 5 : a = 4⅔ : 1⅙


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