Mathematics for IGCSE & O level - Proportion (Section 2 - No. 23)
If the time taken (*t*) to travel a distance is inversely proportional to the speed (*s*), which of the following statements is true?
t*s = k
t/s = k
t = k/s
s=k/t
Vysvětlení
Inverse proportion means that the product of two variables is a constant, or the variables can be expressed as y = k/x