Question

Calcule a quantos graus Celsius correspondem 1°F

Answer 1

OLA

Temos as igualdades :
$\frac{tc}{5} = \frac{tf-32}{9} =\ \textgreater \ \frac{tc}{5} = \frac{1-32}{9}=\ \textgreater \ \frac{tc}{5} = \frac{-31}{9}=\ \textgreater \ tc= \frac{5*(-31)}{9} =\ \textgreater \ tc= \frac{-155}{9} =$ -17,22°C

Answer 2

C/5 = F-32/9
C/5 = 1-32/9
9C = -155
C = -155/9 = -17,2222°C