Answer :
To convert 84 degrees Fahrenheit to Celsius, use the formula (°F - 32) × 5/9. This gives approximately 28.9°C when rounded to the nearest tenth. The correct answer is A. 28.9°C.
Conversion of Fahrenheit to Celsius:
To convert Fahrenheit (°F) to Celsius (°C), we use the formula:
°C = (°F - 32) × 5/9
Now, substitute 84°F into the formula:
°C = (84 - 32) × 5/9
°C = 52 × 5/9
°C = 260/9
°C ≈ 28.8889
Rounding 28.8889 to the nearest tenth: 28.9°C
Therefore, the correct answer is A. 28.9°C.
Final answer:
To convert 84 degrees Fahrenheit to Celsius, apply the formula C = 5/9 x (F - 32). The calculation gives you 28.89, which rounded to the nearest tenth is 28.9°C, corresponding to answer option A.
Explanation:
To convert 84 degrees Fahrenheit to Celsius and round the answer to the nearest tenth, you use the formula C = 5/9 x (F - 32), where F is the Fahrenheit temperature and C is the Celsius equivalent.
Now let's calculate:
C = 5/9 x (84 - 32)
C = 5/9 x 52
C = 5 x 5.778
C = 28.89
When we round 28.89 to the nearest tenth, we get 28.9°C. So, the correct answer is A. 28.9°C.
The Celsius scale is also known as the centigrade scale because it is based on 100 degrees between the freezing point (0°C) and boiling point (100°C) of water at standard atmospheric pressure, with 'centi' meaning hundred.
