We can find the value of an expression when given the values of , , etc.
Before we start, we will need to remind ourselves of BODMAS: the order in which we carry out calculations.
Find the value of when and .
To find the value of an expression, we need to substitute the given values for and into .
Remember, BODMAS tells us to multiply before we add.
Evaluate when , and .
An approximate formula which converts celsius temperatures to farenheit is .
Calculate when is 15.
Therefore 15°C is approximately equal to 60°F.