Question

20 c grau para Fahrenheit????? PFV

Answer 1

F = C x $\frac{9}{5}$ + 32
F = 20 x $\frac{9}{5}$ + 32
F = 68

R = 68ºF

Answer 2

  C    =  F - 32
100    212 - 32

C    =  F - 32
100       180     (:20)

C = F - 32
5        9

20 = F - 32
5         9

4 = F - 32
          9

36 = F - 32
36 + 32 = F
68 = F
F = 68ºF