a) 1zł-ile to promili kwoty 2000zł? b) 5ml- jaki to promil obiętości 4l? Zapisz WSZYSTKIE obliczenia.
1%o- 1000%
2000:1000=25%o
4l=4000ml
5ml=0,005l
4000*0,005l=20%o
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1%o- 1000%
2000:1000=25%o
4l=4000ml
5ml=0,005l
4000*0,005l=20%o