Question

Assume that t varies directly as p. What is the constant of proportionality if r=3 when p=15

Answer 1

`\begin{gathered} \text{ r }\propto\text{ p} \\ r\text{ = kp} \\ k=(r)/(p) \\ \text{when r = 3 when p = 15} \\ k\text{ = }(3)/(15) \\ k\text{ = }(1)/(5) \end{gathered}`