Ex3: A time and temperature sign on a bank indicates that the outdoor temperature is
-20 ºC . find the corresponding temperature on the Fahrenheit scale.
This is direct change from degrees centigrade to Fahrenheit,
F = 1.8 C + 32
F = 1.8 (-20) + 32 = - 4
Ex4: A temperature of absolute zero occurs at -273.15 ºC . what is the temperature on the Fahrenheit scale
F = 1.8 C + 32
F = 1.8 (-273.15) + 32 = - 459.7