Final answer:
The temperature drop in °C is approximately 8°C.
Step-by-step explanation:
To find the temperature drop in °C, we need to convert the Fahrenheit temperature to Celsius. To convert Fahrenheit to Celsius, we use the formula: C = (F - 32) * 5/9.
First, we convert the initial temperature of 90°F to Celsius: C = (90 - 32) * 5/9 = 32.2°C.
Then, we convert the final temperature of 75°F to Celsius: C = (75 - 32) * 5/9 = 23.9°C.
Now, we calculate the temperature drop: 32.2°C - 23.9°C = 8.3°C. Since we need to round our answer to the nearest whole number, the temperature drop in °C is approximately 8°C.
Learn more about Temperature conversion