Question

transformar -30 graus Celsius em graus Fahrenheit

Answer 1

Fórmula:
$F=C*1,8+32$
Só substituir e resolver:
$F=(-30)*1,8+32=-54+32=-22$

Answer 2

Olá !


Para transformar graus celsius em fahrenheit, basta utilizar a fórmula abaixo ...

$\boxed{\mathsf{\dfrac{T_{C}}{5}=\dfrac{(T_{F}-32)}{9}}}$

Sendo que o enunciado pede para transformar -30°C em °F , vamos à resolução.

$\mathsf{\dfrac{T_{C}}{5}=\dfrac{(T_{F}-32)}{9}} \\\\\\ \mathsf{\dfrac{(-30)}{5}=\dfrac{(T_{F}-32)}{9}} \\\\\\ \mathsf{9\cdot(-30)=5(T_{F}-32)} \\\\\\ \mathsf{-270=5T_{F}-160} \\\\\\ \mathsf{5T_{F}-160=-270} \\\\\\ \mathsf{5T_{F}=-270+160} \\\\\\ \mathsf{5T_{F}=-110} \\\\\\ \mathsf{T_{F}=\dfrac{-110}{5}} \\\\\\ \boxed{\mathsf{T_{F}=-22}}$



Portanto, -30 graus celsius equivalem a -22 graus fahrenheit.

Espero ter colaborado !!