Jawabanmu

2014-05-13T22:13:17+07:00
(40-0)/(100-0)=(x-(-20)0/(180-(-20))
40/100=(x+20)/200
8000=100x+2000
100x=6000
x=60
ga ada 60 , jawabanya cuman 10-50
tu derajat celciusnya 40?
iya
2014-05-13T22:20:21+07:00
40 derajat celcius = (10/5 x 40) + 20
                           = 80 + 20 = 100