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50 kg - x
x = 3/20 * 50
x = 7,5
odp: można uzyskać 7,5 kg glukozy .
; )
15% - x
100% - 50kg
x = 15%* 50kg pod kreska ułamkowa 100%(skracamy zera)
x= 75/10
x= 7,5 kg