Question

the average temperature at the south pole in september is - 35.4 °c. convert this temperature to degrees fahrenheit. round your answer to 3 significant digits.

Explanation:

Step1: Recall conversion formula

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

Step2: Substitute Celsius value

$F=\frac{9}{5}\times(-35.4)+ 32$

Step3: Calculate multiplication

$\frac{9}{5}\times(-35.4)=9\times(-7.08)= - 63.72$

Step4: Calculate addition

$F=-63.72 + 32=-31.72$

Step5: Round to 3 significant digits

$-31.72\approx - 31.7$

Answer:

$-31.7^{\circ}F$