Oblicz ile 10 procentowego octu potrzeba na 150 g wody aby przygotować zalewę do buraków. Stosunek octu do wody wynosi 1:3.
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x/150 = 1/3
3x = 150
x = 50g octu
1 x
------ = ----------
3 150g
z proporcji wyliczam x
x = 50g
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Feci, quod potui, faciant meliora potentes
Pozdrawiam :)