Odpowiedź:
Trzeba 21g Cu i 9g Zn.
Wyjaśnienie:
100g stopu zawiera 70g Cu i 30g Zn
30g stopu x y
""""""""""""""""""""""""""""""""""
x = 30g *70g / 100g = 21g Cu
y = 30g *30g / 100g = 9g Zn
Semper in altum
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Odpowiedź:
Trzeba 21g Cu i 9g Zn.
Wyjaśnienie:
100g stopu zawiera 70g Cu i 30g Zn
30g stopu x y
""""""""""""""""""""""""""""""""""
x = 30g *70g / 100g = 21g Cu
y = 30g *30g / 100g = 9g Zn
Semper in altum