Answer:
[tex] r = \frac{tw}{(t - 1)} [/tex]
Step-by-step explanation:
[tex]t = \frac{r}{(r - w)} \\ t(r - w) = r \\ tr - tw = r \\ tr - r = tw \\ r(t - 1) = tw \\ \frac{r(t - 1)}{(t - 1)} = \frac{tw}{(t - 1)} \\ r = \frac{tw}{(t - 1)} [/tex]
Hope this helps you.
Let me know if you have any other questions :-):-)
