## Intermediate Algebra (12th Edition)

$-50^{o}$ C
In order to convert Fahrenheit to Celsius, we use the formula: $C=\displaystyle \frac{5}{9}(F-32)$ We plug in $-58$ for $F$: $C=\displaystyle \frac{5}{9}(-58-32)$ $=\frac{5}{9}(-90)$ $=5*-10$ $=-50^{o}$ C