Odpowiedzi

2010-04-13T22:10:40+02:00
Wydaje mi się, że ma to być tak:

24-5%
x-3%

24razy3/5=14,5
2010-04-13T22:18:00+02:00
Dane1:
Cp=5%
mr=24kg
ms=?

Cp=ms*100%/mr
Cp=ms*100%/mr /*mr
Cp*mr=ms*100% /:100%

ms=Cp*mr/100%

ms=5%*24kg/100%
ms=1,2kg

Dane2:
Cp=3%
ms=1,2kg
mr=?

Cp=ms*100% /mr /*mr
Cp*mr=ms*100% /Cp
mr=ms*100%/Cp
mr=1,2kg*100%/3%
mr=40kg

40kg-24kg=16kg