What is the formula that relates the Fahrenheit scale to the Kelvin scale?

Cooper wrote:

F=9*C/5 + 32
Since, K=273+C, therefore replace C=K-273
where F is temperature in fahrenheit, C in Celcius and K in Kelvin
If you look at the mathematica equation i gave above, the formula is also written there.

The purpose of my question was to explain how to solve the problem. Your approach seemed to be to plug numbers into Mathematica—an approach that is totally devoid of any analytical thought, and which suggests that you might not undestand the relationships among the different temperature scales. (I do realize that you implicitly provided the equation to convert Fahrenheit to Kelvin, but you did not explain—until just now—how you arrived at that equation.)

If I were to ask you “How much is 7 divided by 2?,” would you tell me to plug the numbers into Mathematica or a hand calculator? If so, then I would conclude that you don’t have a decent grasp of basic arithmetic.

Cooper wrote:

Well mathematica is not a magic. Neither is a calculator unless you know what you want to do. These are just the tools.

You might be surprised: I’ve seen students use calculators to get the decimal equivalent of very simple fractions (such as one half and one third).

I agree for the readers who want to know the answer the proper approach would be would to write the formula, but then again i was under the assumption that i was just answering ganesh's question,which said that..."We all know that at -40 degrees, temperature Centigrade and Fahrenheit are equal." .....Now that itself makes an assumption that you know the relation between Centrigrade and Fahrenheit. And so.....i made another same assumption. Isn't that fair assumption in case of the question itself being assuming that?

1. ilovephysics.com and other bulletin-board type websites exist primarily to help people gain a better understanding of the subject. People post here either to ask a question or to answer one. Just posting an equation to be used with Mathematica (which—just as an aside observation—most folks don’t even have!) does neither.

2. This is especially true in this particular forum: “Brain Teasers.”