Odpowiedzi

2010-03-28T12:18:04+02:00
390,6kg:100=3,906
3,906*7=27,342
7 2 7
2010-03-28T12:22:55+02:00
390,6 - 100%
x - 7 %

x = 390,6* 7 / 100 = 27,342 ≈ 27,34
9 3 9