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Multiple Choice

If F = 104, what is Celsius?

To convert Fahrenheit to Celsius, use the relationship C = (F − 32) × 5/9. Subtracting 32 aligns the freezing points of the two scales, since 0°C equals 32°F, and then you scale by 5/9 to convert the degree increment from Fahrenheit to Celsius. Plug in F = 104: 104 − 32 = 72. Then 72 × 5/9 = (72/9) × 5 = 8 × 5 = 40. So the temperature in Celsius is 40°C.

To convert Fahrenheit to Celsius, use the relationship C = (F − 32) × 5/9. Subtracting 32 aligns the freezing points of the two scales, since 0°C equals 32°F, and then you scale by 5/9 to convert the degree increment from Fahrenheit to Celsius.

Plug in F = 104: 104 − 32 = 72. Then 72 × 5/9 = (72/9) × 5 = 8 × 5 = 40. So the temperature in Celsius is 40°C.