Jawabanmu

2014-04-02T20:30:10+07:00
Reamur =4
fahrenheit = 9+32

d1: f=20
d2= r?
d3 =
f/r+32 = 9/4x20+32 = 77 r
2014-04-02T20:51:06+07:00
T°C = 5 x T°R = 5 x 20°R = 5 x 5 = 25°C
         4               4
T°F = 9 x T°C + 32 = 9 x 25°C + 32 = 9 x 5 + 32 = 45 + 32 = 77°F
         5                      5