Hello, Mukilab!
Do you really understand proportionality?
.[1]is inversely proportional to the cube of .
Substitute into [1]: .When
Therefore: .
Proportionality afaik requires a variable equal to another variable multiplied (or divided) by a constant.
; is proportional to . An inverse proportionality would be
So the constant either has to be given, or you need to be able to calculate it from the information you have.
They did mention it was inversely proportional, right? That means;
even though isn't written anywhere you know there is a constant to define the relationship between Q and T. You can also call that constant whatever you like. It's basically rule 1 of algebra.Originally Posted by Soroban