Alexandra puts £2680 into an bank account.
The account pays 
 compound interest each year.

Work out how much Alexandra will have in the account after 9 years.



To calculate how much Alexandra will have in her bank account after 9 years, we will use the formula for compound interest:

\[
A = P \left( 1 + \frac{r}{100} \right)^t
\]

Where:
- \( A \) is the amount of money after interest.
- \( P \) is the principal amount (initial deposit), which is £2680.
- \( r \) is the annual interest rate (which is not provided yet).
- \( t \) is the time in years, which is 9 years.

If you provide the interest rate, I can calculate the final amount for you. 

Do you have the interest rate? 

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Here are 5 related questions:
1. What would the total amount be after 9 years if the interest rate was 5%?
2. How does the formula for simple interest differ from compound interest?
3. What is the effect of compounding frequency on the final amount?
4. If Alexandra deposits an additional £500 after 5 years, how would this impact the final amount?
5. How would the result change if the interest rate was 3% instead of the rate you are using?

**Tip:** In compound interest, the more frequently the interest is compounded, the higher the final amount.

Alexandra puts £2680 into a bank account. The account pays compound interest each year. Work out how much Alexandra will have in the account after 9 years.

Learn how to calculate compound interest for Alexandra's deposit of £2680 over 9 years using the compound interest formula. This guide explains key concepts like exponential growth and includes a step-by-step solution. Suitable for students in Grades 9-12.

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