Math Problem Statement

Substitute the given values into the formula

Upper P equals StartStartFraction Upper A OverOver left parenthesis 1 plus StartFraction r Over n EndFraction right parenthesis Superscript nt EndEndFractionP=A1+rnnt

and simplify. Be sure to round up to the nearest​ cent, and check your math carefully.

Solution

Let's substitute the given values into the formula and simplify it step by step.

Formula:

P=A(1+rn)ntP = \frac{A}{\left(1 + \frac{r}{n}\right)^{nt}}

Where:

  • A=11,000A = 11,000 (Future Value)
  • r=0.04r = 0.04 (Annual Interest Rate)
  • n=2n = 2 (Compounded Semiannually)
  • t=3t = 3 (Time in Years)

Step 1: Substitute the values into the formula:

P=11,000(1+0.042)2×3P = \frac{11,000}{\left(1 + \frac{0.04}{2}\right)^{2 \times 3}}

Step 2: Simplify the term inside the parentheses:

1+0.042=1+0.02=1.021 + \frac{0.04}{2} = 1 + 0.02 = 1.02

Step 3: Raise this value to the power of ntnt:

1.022×3=1.0261.02^{2 \times 3} = 1.02^6

Now, calculate 1.0261.02^6:

1.0261.1261621.02^6 \approx 1.126162

Step 4: Divide the future value by this result to find the present value PP:

P=11,0001.1261629,765.2992P = \frac{11,000}{1.126162} \approx 9,765.2992

Step 5: Round to the nearest cent:

P9,765.30P \approx 9,765.30

Thus, the amount that should be deposited today is $9,765.30.

Would you like any further clarification or details on this calculation?

Related Questions:

  1. How much interest will be earned by the end of three years?
  2. What is the formula for future value if the present value and interest rate are known?
  3. How does the value change if compounded quarterly instead of semiannually?
  4. What is the present value for a future value of $11,000 at 3% compounded semiannually?
  5. How do you calculate the effective annual rate (EAR) for 4% compounded semiannually?
  6. What is the present value if the future value is $12,000 under the same conditions?
  7. How does an increase in the time period to 5 years affect the present value?
  8. What would be the required present value if the goal was $20,000 in three years?

Tip: Always double-check calculations when working with compound interest, as small errors in the exponentiation step can lead to incorrect results.

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Math Problem Analysis

Mathematical Concepts

Compound Interest
Exponential Functions

Formulas

Compound Interest Formula

Theorems

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Suitable Grade Level

Grades 10-12