Math Problem Statement
Solution
Let's break down the problem from your DeltaMath question:
We have two investments:
-
Nicole's Investment:
- Principal: $29,000
- Interest Rate: 5 ¼ % = 5.25% (as a decimal, 0.0525)
- Compounded continuously
- Time: 14 years
For continuous compounding, we use the formula: where is the amount, is the principal, is the interest rate, and is the time in years. is the base of the natural logarithm (approximately 2.718).
-
Bentley's Investment:
- Principal: $29,000
- Interest Rate: 4 ⅝ % = 4.625% (as a decimal, 0.04625)
- Compounded annually
- Time: 14 years
For annual compounding, we use the formula: where since it is compounded annually.
Let me calculate how much each person has after 14 years and find the difference.After 14 years:
- Nicole's account grows to approximately $60,479.
- Bentley's account grows to approximately $54,613.
The difference in favor of Nicole is approximately $5,866.
Would you like further details or have any questions?
Here are some related questions for further practice:
- How would the result change if Bentley’s interest was compounded quarterly instead of annually?
- What would happen if both accounts were compounded semi-annually?
- How does continuous compounding differ from annual compounding in general?
- How would an increase in the investment amount affect the total after 14 years?
- What would the final amount be for both Nicole and Bentley after 20 years instead of 14?
Tip: Continuous compounding typically leads to higher returns compared to annual compounding, especially over longer periods.
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Math Problem Analysis
Mathematical Concepts
Exponential Growth
Continuous Compounding
Annual Compounding
Formulas
Continuous Compounding: A = P * e^(rt)
Annual Compounding: A = P * (1 + r/n)^(nt)
Theorems
Exponential growth model
Suitable Grade Level
High School
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