Answer:
The temperature is -40 degrees, this means that:
-40°C = -40°F
Explanation:
If we have a temperature T in the Celcius scale, the equation to transform it into the Fahrenheit scale is:
(T*9/5) + 32
Now we want to have the same reading in Celcius than in Fahrenheit, then we must have:
(T*9/5) + 32 = T
We need to solve this for T.
T*(9/5) - T = -32
T*(9/5 - 5/5) = -32
T*(4/5) = -32
T = -32*(5/4) = -40
This means that -40°C = -40°F
