G The formula for simple interest I is I = Prt, where P is the principal,
r is the interest rate, and t is time. Solve for P.

To solve the formula for simple interest \( I = Prt \) for \( P \) (the principal), follow these steps:

### Given formula:
\[
I = Prt
\]

### Solving for \( P \):
1. **Isolate \( P \)**: Divide both sides of the equation by \( rt \):
\[
P = \frac{I}{rt}
\]

### Final solution:
\[
P = \frac{I}{rt}
\]

This means that to find the principal \( P \), you divide the simple interest \( I \) by the product of the interest rate \( r \) and time \( t \).

Would you like more details or have any questions?

Here are 5 related questions:
1. How would you calculate \( r \) (the interest rate) if you know \( I \), \( P \), and \( t \)?
2. What is the difference between simple interest and compound interest?
3. How does changing \( t \) (time) affect the amount of simple interest earned?
4. If the interest rate is given as a percentage, how do you convert it to decimal form in the formula?
5. What happens if the time \( t \) is less than 1 year? How does this affect the calculation?

**Tip:** Always express the interest rate \( r \) as a decimal in the formula (e.g., 5% becomes 0.05).

The formula for simple interest I is I = Prt, where P is the principal, r is the interest rate, and t is time. Solve for P.

Learn how to solve for the principal (P) in the simple interest formula I = Prt. This step-by-step guide covers the core algebraic concepts of interest, principal, and time. Perfect for students in Grades 7-10 looking to understand simple financial math.

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