Math Problem Statement

Find the present value of the deposit. ​$47 comma 000 at 7.6​% compounded continuously for 8 years Question content area bottom Part 1 The present value is ​$    enter your response here. ​(Round to the appropriate​ cent.)

Solution

To find the present value PVPV of a deposit compounded continuously, we use the formula:

PV=AertPV = \frac{A}{e^{rt}}

Where:

  • AA is the future value (in this case, $47,000),
  • rr is the annual interest rate (7.6% or 0.076 as a decimal),
  • tt is the time in years (8 years),
  • ee is the base of the natural logarithm (approximately 2.71828).

Let's calculate it step by step:

  1. A=47,000A = 47,000
  2. r=0.076r = 0.076
  3. t=8t = 8

Now, compute PVPV:

PV=47000e0.076×8PV = \frac{47000}{e^{0.076 \times 8}}

I'll calculate this.The present value of the deposit is approximately $25,588.62.

Would you like more details or have any further questions? Here are some related questions to explore:

  1. What is the formula for continuously compounded interest?
  2. How does the present value change with different interest rates?
  3. How would the present value change if the interest was compounded annually instead of continuously?
  4. What is the difference between simple interest and continuously compounded interest?
  5. How can you calculate future value using continuous compounding?

Tip: For continuous compounding, the formula involves the exponential function erte^{rt}, making it more effective for higher frequencies of interest calculations.

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Math Problem Analysis

Mathematical Concepts

Exponential Functions
Continuous Compounding
Present Value

Formulas

PV = A / e^(rt)

Theorems

Exponential Growth and Decay Theorem

Suitable Grade Level

Grades 10-12