Question

the thermometer on a sign indicates that it is 20 degrees celsius. what is this in degrees fahrenheit? multiple choice 77.8 degrees fahrenheit 93.6 degrees fahrenheit 12 degrees fahrenheit 68 degrees fahrenheit 32 degrees fahrenheit

Explanation:

Step1: Recall conversion formula

$F=\frac{9}{5}C + 32$

Step2: Substitute Celsius value

$C = 20$, so $F=\frac{9}{5}\times20+32$

Step3: Calculate multiplication part

$\frac{9}{5}\times20=9\times4 = 36$

Step4: Calculate final result

$F=36 + 32=68$

Answer:

D. 68 degrees Fahrenheit