Jawabanmu

2014-03-28T08:35:12+07:00
Skala x = 240 - 40 = 200 skala
skala C = 100 - 0 = 100 skala

140  =   X  
200     100 

200x = 14000
x = 70 C
2014-03-28T08:49:50+07:00
Termometer celcius menunjukan 50derajat celcius
cara
x - xb / xa - xb = c - cb / ca - cb
140 - 40 / 240 -40 = c-0 / 100 -0
100 / 200 = c / 100
1/2 = c/100 perkalian silang
2c = 100
c = 100/2 =50 derajat c