November 2018 1 22 Report

PLIS POMUŻCIE MI TO ZROBIC

zad1

a)30% pewnej liczby to 45.jaka to liczba?

30%to-45

10%to-

100%to-

b)90%pewnej liczby to 279.jaka to liczba?

90%to-270

10%to-

100%to-

c)60%pewnej liczby to 400.jaka to liczba?

60%to-400

10%to-

100%to-

dam naj


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