Jawabanmu

2014-05-18T14:23:24+07:00
X = 200.25 + 100.-15 / 100+200
=5000-1500 / 300
=3500/300
= 11,67
Kk... itu rumusnya gimana ?
x= MT2 +MT1 / M+m
Jawaban paling cerdas!
2014-05-18T14:31:03+07:00
Q serap = Q lepas
m.c.ΔT = m.c.ΔT
100.2,1.(t-(-15) = 200.4,2(25-t)
210 ( t+15 ) = 840 ( 25-t )
210t+3550=2100-840t
3550-2100=-840t-210t
1450= -1050t
1450 : -1050 = t
t = -1,3 ada ?

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