Using the interest formula $A=P(1+r t)$, solve for the indicated variable.
Solve for $\mathrm{r}$.
\[
r=
\]
(Simplify your answer.)
Final Answer: \(\boxed{r = \frac{A - P}{Pt}}\)
Step 1 :The question is asking to solve for r in the interest formula. To do this, we need to isolate r on one side of the equation. We can do this by subtracting P from both sides, then dividing by Pt.
Step 2 :The solution is \( r = \frac{A - P}{Pt} \)
Step 3 :Final Answer: \(\boxed{r = \frac{A - P}{Pt}}\)