Final answer:
The temperature in Fahrenheit can be converted to Celsius using the formula Celsius = (Fahrenheit - 32) * (5/9).
Step-by-step explanation:
The thermostat is used to control the temperature in a room or building. The temperature is typically measured in degrees Fahrenheit (°F) or degrees Celsius (°C). In this case, the temperature is given in Fahrenheit. To convert from Fahrenheit to Celsius, you can use the following formula: Celsius = (Fahrenheit - 32) * (5/9).
So, to convert 68.0°F to Celsius: Celsius = (68.0 - 32) * (5/9) = 20.0°C.
And to convert 78.0°F to Celsius: Celsius = (78.0 - 32) * (5/9) = 25.6°C.