Question

The formula to convert Celsius to Fahrenheit is F=9/5c+32. Convert 45F- to Celsius. Round to the nearest degree. O A. 49°C O B. 7°C O C. -1°C O D. 113°C

Answer 1

To convert 45°F to Celsius, subtract 32 and then multiply by 5/9, resulting in approximately 7.22, which rounds to 7°C.

Step-by-step explanation:

To convert a temperature from Fahrenheit to Celsius, you subtract 32 from the Fahrenheit temperature and then multiply by 5/9 (or divide by 1.8). Using the given temperature of 45°F, the conversion to Celsius is calculated as follows:

1. Subtract 32 from 45, which gives you 13.
2. Multiply 13 by 5/9 (or divide by 1.8), which results in approximately 7.22.

When we round this to the nearest degree, we get 7°C. Hence, 45°F is equivalent to 7°C when rounded to the nearest degree.

Answer 2

(45°F − 32) × 5/9 = 7.222°C
Therefore B is correct