Final answer:
The temperatures 68.0°F and 78.0°F on the Fahrenheit scale can be converted to the Celsius scale by subtracting 32 and multiplying by 5/9.
Step-by-step explanation:
The temperatures 68.0°F and 78.0°F on the Fahrenheit scale can be converted to the Celsius scale in the following way:
- Subtract 32 from the Fahrenheit temperature.
- Multiply the result by 5/9.
Using this conversion, the temperatures 68.0°F and 78.0°F on the Celsius scale are approximately 20.0°C and 25.6°C, respectively.