Question

transformar grau Fahrenheit em celsius 23°F=?°c

Answer 1

$\frac{C}{100} = \frac{F-32}{180} \\ \\ \frac{C}{5} = \frac{F-32}{9} \\ \\ \frac{C}{5} = \frac{23-32}{9} \\ \\ \frac{C}{5} = -\frac{9}{9} \\ \\ C= -5$