Odpowiedzi

2009-05-22T11:59:55+02:00
M1T1cw1+m2T2cw2 / m1+m2 =Tk

cw1=cw2 więc skracamy:
(m1T1+m2T2)/(m1+m2)=Tk //*(m1+m2)

m1T1+m2T2=Tk*(m1+m2)

1l=1 kg

100*30+x*50=45*100+45*x
5x=1500
x=300kg = 300 l