Final answer:
To convert the temperature from Celsius to Fahrenheit, use the formula F(C) = 1.8C + 32. By plugging in the values 30°C and 20°C, we can find that the temperature dropped by 18 degrees Fahrenheit.
Step-by-step explanation:
To convert a temperature from Celsius to Fahrenheit, you can use the formula F(C) = 1.8C + 32. In this case, the temperature drops from 30°C to 20°C. To find the number of degrees Fahrenheit it dropped, we can plug in the values into the formula:
F(30) = 1.8(30) + 32 = 54 + 32 = 86
F(20) = 1.8(20) + 32 = 36 + 32 = 68
Therefore, the temperature dropped from 86°F to 68°F, a difference of 18 degrees Fahrenheit.