January 2019 1 77 Report
PROPORCJE
zad 1 Wyznacz wartosc niewiadomej
a) x/18=2/3
b) 6/k=2/5
c) 5/3a=10/21
d) 7/2b=35/4
e) 4/9=36/m
f) 9/10=6/5c
zad 2
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