Math Problem Statement
Use the formula A=P(1+rn)ntA=P(1+nr)nt to find the total amount in an account after one year if the initial deposit is $5,000.00$5,000.00 and it is compounded monthly at 9.8%9.8%. Round to the nearest cent.
Solution
To solve this, we can use the compound interest formula:
Where:
- is the amount in the account after interest.
- is the principal (initial deposit).
- is the annual interest rate (as a decimal).
- is the number of times the interest is compounded per year.
- is the time the money is invested or borrowed for, in years.
Given:
- (initial deposit)
- (annual interest rate as a decimal)
- (monthly compounding)
- year
Now, let's plug these values into the formula:
First, calculate the inner expression:
So the formula becomes:
Next, calculate :
Now, multiply by 5000:
Final Answer:
The total amount in the account after one year is approximately $5,512.88.
Would you like further explanation or have any questions?
Here are 5 follow-up questions to expand on this:
- How does the number of compounding periods affect the total amount in an account?
- What would happen to the total amount if the interest rate were higher or lower?
- How would the total amount change if the interest were compounded quarterly instead of monthly?
- What is the difference between compound interest and simple interest?
- How do you calculate the principal if you know the amount, interest rate, and time?
Tip: The more frequently the interest is compounded, the more interest you will earn, so monthly compounding (instead of annually) results in a higher final amount.
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Math Problem Analysis
Mathematical Concepts
Compound Interest
Exponential Growth
Formulas
A = P(1 + r/n)^(nt)
Theorems
Compound Interest Theorem
Suitable Grade Level
Grades 9-12
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