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  2. Compound interest and annuity - Math Forums

    mathforums.com/t/compound-interest-and-annuity.29505

    Mr. Paul borrows $20,000 on condition to repay it with compound interest at 5% per annum in annual installments of $2,000 each.

  3. Calculate APY based on daily profit | Math Forums

    mathforums.com/t/calculate-apy-based-on-daily-profit.369657

    A should be 100.1 and P should be 100, right? P is the amount invested and A is the amount obtained. Also, doesn't this solution assume that interest is compounded daily?

  4. Reverse compound interest excel formula? | Math Forums

    mathforums.com/t/reverse-compound-interest-excel-formula.50395

    Hi, is there a way to find out the annual compound interest (A), from the interest (I) over (Y) number of years? For example: If interest over 5 years is 300%, so I=5, Y=3.0, how can I calculate A=? Thanks in advance.

  5. Comparing 2 Different Compound Interest Rates Hard Version

    mathforums.com/t/comparing-2-different-compound-interest-rates-hard-version.364542

    Hey everyone! I've got a bit of a conundrum here. I need an equation to calculate the difference between 2 different compound interest rates, that will add the difference between each previous time period to the total, let me explain: A Youtube channel has 1000 subscribers, every month that...

  6. Derivative of Trig functions/Compound Interest problems help

    mathforums.com/t/derivative-of-trig-functions-compound-interest-problems-help...

    Re: Derivative of Trig functions/Compound Interest problems For the first question, you want to compare the future amount of $10,000 invested at 6% compounded yearly with $9,950 invested at 5.9% compounded daily. For simplicity, we will assume a 365 day year.

  7. help me find out what formulas to use for these | Math Forums

    mathforums.com/t/help-me-find-out-what-formulas-to-use-for-these.35043

    OP decides to open a savings account and put $200 in each month for 5 years. If the bank pays an interest rate of 3.5% on his account, how much will he have saved up in 5 years? Future value formula right? OP puts $15,000 in a C.O.D that paid a continuous compound interest rate. After 25 years...

  8. Understanding negative exponents in regards to a PV formula

    mathforums.com/t/understanding-negative-exponents-in-regards-to-a-pv-formula...

    So our monthly payment of 100 is now only worth around 38-39 dollars. So in the example 1 FV formula above..it is the 1.XX int rate subtract 1, which leaves the interest rate by itself. But 1 minus the (I will call it the PV int rate)... is this the same logic as isolating the interest rate?

  9. Compound Interest Q3 - Math Forums

    mathforums.com/t/compound-interest-q3.37341

    Compound Interest: You are going to invest some money at 6.5%/a, compound quartely. A tree grows in height by 21% per year. It is 2 m tall after one year.

  10. Help with Compund interest problems - Math Forums

    mathforums.com/t/help-with-compund-interest-problems.8785

    Assume the interest rate will remain at 7.75% p.a. compounded semi-annually from the time of Jean-Guy’s death until the youngest grandchild turns 21? 3. The Central Bank pays 7.5% compounded semiannually on certain types of deposits.

  11. A simple Interest question...or not ?!? | Math Forums

    mathforums.com/t/a-simple-interest-question-or-not.22227

    Here is the relevant information: Tim has a daughter, Suzie, who is 12 years old. She wants to go to community collage at 17. Tuition is currently $3000 per year going up 4% a year. Tim decided to setup up a RESP (Canadian Education Savings Plan) for Suzie. He wants to know how much he as to...