This question begs the benefit of the doubt ... that it conflates
two separate questions cleverly, rather than blindly.
The answers to both are:
1). 15°C is the warmer temperature.
2). It exceeds the other one by 12°C.
-15
(-15) degrees Fahrenheit = -26.11 degrees Celsius[°C] = ([°F] − 32) × 5⁄9
bromide
3.8 x 10^5 Joules
15 F = -9.44 C
7 degrees Celsius is warmer than 3.5. The higher the number in degrees, the warmer it is!
In the Celsius scale (as well as in other currently used temperature scales), a larger number indicates a warmer temperature.
They are about the same because 60 degrees Fahrenheit is equivalent to 15.56 degrees Celsius
I suggest you convert each of the Fahrenheit temperatures to Celsius (or the other way round, each of the Celsius temperatures to Fahrenheit), and then compare.
15 degrees Celsius is 288.15 Kelvin.
15 degrees Fahrenheit = -9.4 degrees Celsius.
-3 Celsius is warmer.
23
-12
15 degree Fahrenheit = -9.44 degree CelsiusUse this formula to convert degrees Fahrenheit (ºF) to degrees Celsius/Centigrade (ºC): (ºF - 32) / 1.8 =ºC
59 degrees Fahrenheit = 15 degrees Celsius.
A 5˚ increase in Celsius is warmer than a 5˚ increase in Fahrenheit. 5˚ C is equivalent to 41˚F, or 5˚F is equivalent to -15˚C.