If a thermometer indicates 40 degrees Celsius, what's the temperature in degrees Fahrenheit?
A) 54°F
B) 104°F

The problem requires converting Celsius to Fahrenheit.
The conversion formula is F = 5 9 ​ C + 32 .
Substitute C = 40 into the formula: F = 5 9 ​ ( 40 ) + 32 .
Calculate the Fahrenheit temperature: 104 ​ °F.

Explanation

Understanding the Problem We are given a temperature of 40 degrees Celsius and asked to convert it to Fahrenheit.

Stating the Conversion Formula The formula to convert Celsius to Fahrenheit is: F = 5 9 ​ C + 32 where F is the temperature in Fahrenheit and C is the temperature in Celsius.

Substituting the Given Value Substitute C = 40 into the formula: F = 5 9 ​ ( 40 ) + 32

Calculating Fahrenheit Now, calculate the value of F :
F = 5 9 ​ × 40 + 32 = 9 × 8 + 32 = 72 + 32 = 104

Final Answer Therefore, 40 degrees Celsius is equal to 104 degrees Fahrenheit. The correct answer is B) 104°F.


Examples
Temperature conversion is a common task in many real-world scenarios. For example, when traveling to a country that uses a different temperature scale, you need to convert temperatures to understand the weather forecast. Also, many scientific and engineering applications require temperature conversions to ensure accurate measurements and calculations. Knowing how to convert between Celsius and Fahrenheit can be very useful in everyday life.

Answered by GinnyAnswer | 2025-07-05

To convert 40 degrees Celsius to Fahrenheit, use the formula F = 5 9 ​ C + 32 , which results in 104 degrees Fahrenheit. The correct answer is B) 104°F.
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Answered by Anonymous | 2025-07-07