solve for r:

I = prt

I/pt = r

To solve for r in the formula I = prt, you need to isolate r on one side of the equation.

Let's break down the formula first:

- I represents the interest amount or income.
- p stands for the principal or initial amount of money.
- r is the interest rate per time period.
- t represents the time period in which interest is calculated.

Now, let's solve for r step by step:

1. Start with the formula: I = prt.
2. Divide both sides of the equation by pt to isolate r:

I / (pt) = (prt) / (pt)

Simplify the right side of the equation:

I / (pt) = r

r = I / (pt)

Thus, the solution for r is r = I / (pt).