300g 20% .................. 3-0 = 3...................... 3%xg 0% ...................... 20-3=173x = 300*173x = 5100x = 1700gPonieważ gęstość wody d=1g/cm3,
więc 1700g = 1700cm3 wody
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300g 20% .................. 3-0 = 3
...................... 3%
xg 0% ...................... 20-3=17
3x = 300*17
3x = 5100
x = 1700g
Ponieważ gęstość wody d=1g/cm3,
więc 1700g = 1700cm3 wody