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]

20°C =

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

Answer :

To convert 20 degrees Celsius to degrees Fahrenheit, you can use the conversion formula:

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

Let's break it down step-by-step for 20 degrees Celsius:

1. Multiply by [tex]\(\frac{9}{5}\)[/tex]:
[tex]\[
\frac{9}{5} \times 20 = \frac{180}{5} = 36
\][/tex]

2. Add 32 to the result:
[tex]\[
36 + 32 = 68
\][/tex]

So, 20 degrees Celsius is equal to 68 degrees Fahrenheit. Therefore, the correct answer is:

C. 68

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