High School

The function below allows you to convert degrees Celsius to degrees Fahrenheit. Use this function to convert 20 degrees Celsius to degrees Fahrenheit.

[tex] F(c) = \frac{9}{5}c + 32 [/tex]

A. 94
B. 36
C. 20
D. 68

Answer :

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

[tex]\[ F(c) = \frac{9}{5} \cdot c + 32 \][/tex]

Here, [tex]\( c \)[/tex] represents the temperature in degrees Celsius.

Let's apply this formula to convert 20 degrees Celsius to degrees Fahrenheit:

1. Start with the Celsius temperature given, which is 20 degrees.
2. Multiply 20 by [tex]\(\frac{9}{5}\)[/tex].

[tex]\[ \frac{9}{5} \cdot 20 = \frac{180}{5} = 36 \][/tex]

3. Add 32 to the result from step 2.

[tex]\[ 36 + 32 = 68 \][/tex]

So, 20 degrees Celsius is equal to 68 degrees Fahrenheit.

The correct answer is D. 68.