Final answer:
The correct formula for converting degrees Celsius to degrees Fahrenheit is F = (9/5)C + 32. This formula is used to calculate the equivalent Fahrenheit temperature for any given Celsius temperature.
Step-by-step explanation:
When converting degrees Celsius to degrees Fahrenheit, the correct formula to use is F = (9/5)C + 32. This means that for any given temperature in Celsius, you would multiply that temperature by 9/5 (or 1.8) and then add 32 to get the corresponding temperature in Fahrenheit. For example, the freezing point of water is 0°C, which converts to 32°F using the formula: F = (9/5)(0) + 32 = 32°F. To understand a temperature decrease in Fahrenheit, a decrease of 40.0°F would be equivalent to a decrease of 40.0 divided by 1.8 in Celsius, because the changes in Fahrenheit degrees are nine-fifths the changes in Celsius degrees. This formula represents the standard conversion equation widely used to convert temperatures between the Celsius and Fahrenheit scales. In this formula, you multiply the Celsius temperature by 9/5 and then add 32 to get the equivalent Fahrenheit temperature. The other options (B, C, D) do not represent the correct conversion relationship between Celsius and Fahrenheit temperatures and should be disregarded for this specific purpose.