Answer
The equivalent temperature on the Celsius scale is $-30^{\circ}~C$
Work Step by Step
We can convert $-22^{\circ}~F$ to its equivalent temperature on the Celsius scale.
$C = \frac{5}{9}~(F-32)$
$C = \frac{5}{9}~(-22-32)$
$C = \frac{5}{9}~(-54)$
$C = -30$
The equivalent temperature on the Celsius scale is $-30^{\circ}~C$