Question

how are celsius temperatures converted to fahrenheit temperatures?
multiply the number by \\(\frac{9}{5}\\) and then add 32
add 273 to the original number
subtract 32 and then multiply that number by \\(\frac{5}{9}\\)
subtract 273 from the original number

Explanation:

To convert Celsius (\(C\)) to Fahrenheit (\(F\)), the formula is \(F=\frac{9}{5}C + 32\). Let's analyze each option:

• Option 1: "multiply the number by \(\frac{9}{5}\) and then add 32" matches the formula \(F=\frac{9}{5}C + 32\), so this is correct.
• Option 2: "add 273 to the original number" is the conversion from Celsius to Kelvin (\(K = C+ 273.15\)), not Fahrenheit, so this is incorrect.
• Option 3: "subtract 32 and then multiply that number by \(\frac{5}{9}\)" is the formula for converting Fahrenheit to Celsius (\(C=\frac{5}{9}(F - 32)\)), not the other way around, so this is incorrect.
• Option 4: "subtract 273 from the original number" is not a valid temperature conversion formula for Celsius to Fahrenheit, so this is incorrect.

Answer:

A. multiply the number by \(\frac{9}{5}\) and then add 32