Math & Finance Majors: Questions Answered

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Discussion Overview

The discussion revolves around the experiences and inquiries of Math and Finance majors, particularly focusing on a specific financial problem involving compound interest calculations. The scope includes both personal academic decisions and mathematical problem-solving related to finance.

Discussion Character

  • Homework-related
  • Mathematical reasoning

Main Points Raised

  • One participant expresses interest in double-majoring in Math and Finance, indicating a transition in their academic focus.
  • Another participant presents a financial problem regarding calculating the original investment based on interest earned, seeking guidance on the appropriate formulas to use.
  • A subsequent reply provides a formula for calculating the present value of an investment, noting the importance of the negative exponent in the formula.
  • A later reply confirms the calculation of the original investment as $1,200, indicating successful resolution of the problem posed.

Areas of Agreement / Disagreement

The discussion includes a clear inquiry and response regarding a mathematical problem, with one participant confirming their solution. However, there is no indication of broader consensus on the academic paths or experiences of Math and Finance majors.

Contextual Notes

The initial inquiry about the financial problem lacks detailed context regarding the assumptions made in the calculation, such as the treatment of compounding periods or any potential fees associated with the investment.

Who May Find This Useful

Students considering a double major in Math and Finance, individuals seeking help with compound interest calculations, and those interested in the intersection of mathematics and financial applications.

rocomath
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Are there any Math/Finance Majors in here? I am currently a Math major, but I am also thinking about doing a double-major with Finance. I start this summer, so I still have time.
 
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Hi, I'm new to this site and may be in the wrong place. If so, kindly direct me to the right place.
I wold like to solve the following question:
If the total interest earned on an investment at 8.2% compounded semiannually for 8.5 years was $1,175.98, what was the original investment?
I would like to know what formula(s) to use.
Thank you in advance.
Makman
 
Makman said:
Hi, I'm new to this site and may be in the wrong place. If so, kindly direct me to the right place.
I wold like to solve the following question:
If the total interest earned on an investment at 8.2% compounded semiannually for 8.5 years was $1,175.98, what was the original investment?
I would like to know what formula(s) to use.
Thank you in advance.
Makman
You have to use the formula

P=A(1+r/m)^-(m*t)

A is you actual ammount
r is your rate
m is your compound, in your case m will be 2
t is the time in years

Remember that the formula has a negative exponent!
 
Thank you!
Yes, I worked it out. $1,200.

Much appreciated.
 

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