Question

Faça a conversão das seguintes temperaturas 104°F para °C

Answer 1

Θc/5= Θf-32/9

x/5= 104-32/9
x/5= 72/9

9x= 360
x= 360/9
x= 40°C

Beleza?

Answer 2

Substituindo o valor da temperatura em Fahrenheit:

$\mathsf{\dfrac{C}{5^{\circ }}=\dfrac{F-32^{\circ }}{9^{\circ }\:}}\\\\\mathsf{\dfrac{C}{5^{\circ }}=\dfrac{104-32^{\circ }}{9^{\circ }\:}}\\\\\mathsf{\dfrac{C}{5^{\circ }}=\dfrac{72^{\circ }}{9^{\circ }\:}}\\\\\mathsf{\dfrac{C}{5^{\circ }}=8^{\circ }}\\\\\mathsf{C=8^{\circ }\cdot 5^{\circ }}\\\\\boxed{\mathsf{C=40^{\circ }}}$