Math Problem Statement

Find the present value PV of the given investment (in dollars). (Round your answer to the nearest cent.) An investment earns 8% per year and is worth $7,000 after 7 months. PV = $

Solution

To find the present value (PV) of an investment, we can use the formula for compound interest:

PV=FV(1+r)tPV = \frac{FV}{(1 + r)^t}

Where:

  • PVPV = present value (what we're solving for),
  • FVFV = future value ($7,000),
  • rr = annual interest rate (8% per year or 0.08 in decimal form),
  • tt = time in years.

Since the time is given in months, we need to convert it to years. t=712t = \frac{7}{12} years.

Now, let's substitute the values into the formula:

PV=7000(1+0.08)712PV = \frac{7000}{(1 + 0.08)^{\frac{7}{12}}}

Now, we compute this step-by-step:

  1. Calculate the interest rate factor: 1+0.08=1.081 + 0.08 = 1.08.
  2. Raise it to the power of 712\frac{7}{12}: 1.087121.08^{\frac{7}{12}}.
  3. Divide $7,000 by the result from step 2.

Let me calculate this for you.The present value (PV) of the investment is approximately $6,692.69.

Would you like more details or have any questions?

Here are 5 related questions to expand your understanding:

  1. How does the interest rate impact the present value over different time periods?
  2. What happens to the present value if the investment period is longer than 7 months?
  3. How would the present value change if the interest rate increased to 10% per year?
  4. Can this formula be applied to continuous compounding interest? If so, how?
  5. How can inflation affect the present value of future investments?

Tip: Always convert the time period into years when using annual interest rates for calculations!

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Finance
Compound Interest
Present Value

Formulas

PV = FV / (1 + r)^t

Theorems

Compound Interest Formula

Suitable Grade Level

College Level or Advanced High School (Grades 11-12)