NICET - Highway Construction Inspection Practice Exam

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What is the formula to convert Celsius to Fahrenheit?

F = (9/5) x C + 32
F = (C - 32) x (5/9)
F = C + 32
F = (5/9) x C + 32

The correct answer is: F = (9/5) x C + 32

The formula to convert Celsius to Fahrenheit is derived from the relationship between the two temperature scales. The correct formula states that you multiply the temperature in Celsius by $9/5$ and then add 32. This is based on the fact that the freezing point of water is 0 degrees Celsius and 32 degrees Fahrenheit, while the boiling point is 100 degrees Celsius and 212 degrees Fahrenheit. Using the formula F = (9/5) x C + 32 allows you to accurately make the conversion by taking into account the scaled difference between the two temperature units and their respective starting points. Therefore, when you plug a Celsius temperature into this formula, it will output the equivalent Fahrenheit temperature. The other options do not correctly represent the conversion process. For instance, one option suggests subtracting 32 from Celsius, which is not part of the correct conversion steps. Therefore, the formula to convert Celsius to Fahrenheit accurately, considering both the scale and baseline adjustments, is indeed F = (9/5) x C + 32.