How do you convert 87 degrees Fahrenheit into degrees Centigrade?

To convert Fahrenheit to Centigrade (Celsius), the formula used is:

[

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

]

In this case, you start with 87 degrees Fahrenheit. Here’s how you can apply the formula step by step:

1. Subtract 32 from the Fahrenheit temperature:

[

87 - 32 = 55

]

2. Multiply the result by 5:

[

55 \times 5 = 275

]

3. Now divide by 9 to get the temperature in Centigrade:

[

\frac{275}{9} \approx 30.56

]

Rounding 30.56 to one decimal point gives you approximately 30.5 degrees Centigrade. This calculation confirms that the conversion is accurate and leads to the conclusion that the representation of approximately 30.5 degrees C is indeed the correct answer. Understanding this conversion process is essential for anyone in fields requiring the interpretation of temperature data, including operating engineers.