Question
Convert 5°F to the Celsius scale.

Answer

$
\frac{\mathrm{C}}{5}=\frac{\mathrm{F}-32}{9}
$
Given, $\mathrm{F}=5^{\circ} \mathrm{F}$
$
\frac{C}{5}=\frac{5-32}{9}
$
Substitute the value of $\mathrm{F}$ in above equation
$
\begin{aligned}
& \frac{C}{5}=\frac{-27}{9} \\
& \frac{C}{5}=-3 \\
& C=-3 \times 5 \\
& C=-15
\end{aligned}
$
Solution $=-15^{\circ} \mathrm{C}$.

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