Odpowiedź:
1.
48 kg * 65% = 48 kg * 65/100 = 48 kg * 13/20 = 2,4 kg * 13 = 31,2 kg tlenu
48 kg * 18,5% = 48kg * 185/1000 = 48 kg * 37/200 = 0,24 kg * 37 =
= 8,88 kg
31,2 kg - 8,88 kg = 22,32 kg
Odp: A
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Odpowiedź:
1.
48 kg * 65% = 48 kg * 65/100 = 48 kg * 13/20 = 2,4 kg * 13 = 31,2 kg tlenu
48 kg * 18,5% = 48kg * 185/1000 = 48 kg * 37/200 = 0,24 kg * 37 =
= 8,88 kg
31,2 kg - 8,88 kg = 22,32 kg
Odp: A