Jawabanmu

2014-03-24T05:29:22+07:00
-40 C = 9/5 X -40 = -72 + 32 = -40 F

semoga membantu:)
2014-03-24T06:45:21+07:00
X /x-32 = 5/9
9x = 5x - 160
4x = - 160
x = -40