High School

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When the temperature is 20ºC, what is it on the Fahrenheit (F) scale? Use the formula:

\[ F = \left(\frac{9}{5} \times C\right) + 32 \]

A. 93 and 3/5 degrees
B. 78 degrees
C. 62 and 7/5 degrees
D. 68 degrees

Answer :

Final answer:

To convert 20ºC to Fahrenheit, multiply by 9/5 and add 32, resulting in 68ºF. The correct answer is D. 68 degrees.

Explanation:

To find out what the temperature is on the Fahrenheit scale when it is 20ºC, you would use the given formula F = (9/5 • C) + 32. First, multiply the Celsius temperature by 9/5, and then add 32 to the result. Let's calculate:

F = (9/5 • 20) + 32
F = 36 + 32
F = 68

Therefore, when the temperature is 20ºC, it is 68ºF on the Fahrenheit scale. The correct answer is D. 68 degrees.

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