How many degrees Celsius is 55 degrees Fahrenheit?

To convert degrees Fahrenheit to degrees Celsius, you can use the formula:

[

C = \frac{5}{9}(F - 32)

]

In this case, you would substitute 55 for F in the equation:

[

C = \frac{5}{9}(55 - 32)

]

First, calculate (55 - 32):

[

55 - 32 = 23

]

Next, substitute back into the equation:

[

C = \frac{5}{9}(23)

]

Now, multiply 23 by 5:

[

23 \times 5 = 115

]

Next, you divide by 9 to find the Celsius equivalent:

[

C = \frac{115}{9} \approx 12.78

]

This rounds to approximately 12.65 when calculated more precisely, aligning closely with the conversion process.

Thus, 55 degrees Fahrenheit converts to about 12.65 degrees Celsius, making this option the correct answer.