SOLUTION:
To covert temperature from degree to Celsius to Fahrenheit, we make use of the formula below;
[tex]C\text{ = }\frac{5}{9}(F\text{ - 32)}[/tex]
So we convert 20 degrees Celsius to Fahrenheit;
[tex]\begin{gathered} C\text{ = }\frac{5}{9}\text{ (F-32)} \\ \\ 20\text{ = }\frac{5}{9}(F-32) \\ 20\text{ X 9 = }5(F-32) \\ 180\text{ = 5(F-32)} \\ \frac{180}{5}\text{ = F - 32} \\ \\ 36\text{ = F - 32} \\ F\text{ = 36 + 32} \\ F=68^0 \end{gathered}[/tex]
The equivalent Fahrenheit temperature is 68 degrees Fahrenheit.
