To convert a temperature from Celsius to Fahrenheit, you can use the following formula:
[tex]\[ \text{Temperature in} \ ^{\circ}F = \left(\frac{9}{5} \times \text{Temperature in} \ ^{\circ}C \right) + 32 \][/tex]
Let's apply this formula to convert [tex]\(20^{\circ}C\)[/tex] to Fahrenheit:
1. Start with the Celsius temperature: [tex]\(20^{\circ}C\)[/tex].
2. Multiply the Celsius temperature by [tex]\(\frac{9}{5}\)[/tex]:
[tex]\[ 20 \times \frac{9}{5} = 36 \][/tex]
3. Add 32 to the result from the previous step:
[tex]\[ 36 + 32 = 68 \][/tex]
Hence, [tex]\(20^{\circ}C\)[/tex] is equal to [tex]\(68^{\circ}F\)[/tex].
Therefore, the correct answer is:
[tex]\[ 68^{\circ}F \][/tex]
So, [tex]\(20^{\circ}C\)[/tex] is equal to [tex]\(68^{\circ}F\)[/tex].