Stefan's equation states that the expected thickness of ice is proportional to the square root of the number of degree-days (degrees below the freezing point).There is not enough information here; not only is the proportionality factor missing (which we could probably find online), but the formula also requires the number of days.
Note that the temperatures would have to be BELOW the freezing point.
It is 262 deg Celsius.
Kelvin = Celsius + 273.15
80°F = 262/3°C To convert Celsius to Fahrenheit, the formula is F = 9/5C + 32. If the Fahrenheit reading is 3 times the Celsius reading then F = 3C, so 3C = 9/5C + 32 : 6/5C = 32 : C = 262/3. Then F = 3C = 3 x 262/3 = 80
Kelvin = Celsius + 273.15
Temp. Celsius = Temp. Kelvin - 273.15
celsius=(fahrenheit-32)/1.8
You cannot make your own equation because the relationship between Celsius and Fahrenheit exists independently of your existence! The equation is 9C = 5*(F-32)
You can use this equation to convert degrees Celsius (C) to degrees Fahrenheit (F): (C x 1.8) + 32 = F
Celsius to Kelvin: [K] = [°C] + 273.15Kelvin to Celsius: [°C] = [K] − 273.15
You can use this equation to convert degrees Celsius (ºC) to degrees Fahrenheit (ºF): (ºC x 1.8) + 32 = ºF
Use this equation to convert degrees Fahrenheit (ºF) to degrees Celsius/Centigrade (ºC): [°C] = ([°F] - 32) × 0.556Use this equation to convert degrees Celsius/Centigrade (ºC) to degrees Fahrenheit (ºF): [°F] = [°C] × 1.8 + 32
Use this equation to convert degrees Celsius/Centigrade (ºC) to degrees Fahrenheit (ºF): (ºC x 1.8) + 32 = ºF