c=(6a+4b)/10=0,6a+0,4b
Odp. Cena 1 kg mieszanki powinna kosztowac (0,6a+0,4b) zl.
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c=(6a+4b)/10=0,6a+0,4b
Odp. Cena 1 kg mieszanki powinna kosztowac (0,6a+0,4b) zl.