Answer
-40 degrees
Work Step by Step
The formula for a Fahrenheit to Celsius change is (T-32) x 5/9. When you plug in -40 for T, it results in the following steps: 1. (-40-32) x 5/9, 2. -72 x 5/9, 3. -40. The original temperature in Fahrenheit was -40 and the resulting temperatures was -40 Celsius.