Question

A quantos graus Fahrenheit corresponde 50°C?

Answer 1

C/5 = F-32/9
50/5 = F-32/9
5F - 160 = 450
F = 610/5 = 122 graus F

Answer 2

Tc/5 = Tf-32/9 
50/5 = Tf - 32/9
Regra de três 
5Tf - 160 = 450
5Tf = 450 +160 
5Tf = 610
Tf = 610/5
Tf = 122º