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Getting Started with College-Cram.com - Learn (Professor Cram's Blog)

College-Cram.com:: Professor Cram:: Getting Started with College-Cram.com - Learn (Professor Cram's Blog)

August 23, 2007

College-Cram helps you get better grades in less time with our Create/Connect/Learn approach. Here's how Learn works:

  •  Cramlets: Most online resources do a poor job of explaining topics, or end up explaining way too much. Our Cramlets focus on a single topic, letting you choose what you want to learn and when. Want an example? Try one of these:
  • Search bar: Looking for help in a particular topic? Type it into the search bar above and find out what learning resources are available and who created them. You'll get Professor Cram's blog entries and Cramlets, plus icons for any other students or study groups that have resources that could help. For example, search for "Periodic Table" and you'll find Cramlets in Astronomy, Biology, Physics, and Chemistry. Below them are articles from Professor Cram plus suggested alternate tags below that.

  • Tag cloud: Like the Search bar, click on any term in the tag cloud to find out what learning resources are available about that term, both from Professor Cram and from your fellow students. Be sure to tag your own creations well so other students can benefit from your wisdom too!

Just click here to sign up for free and start getting better grades faster with College-Cram.

Posted by Professor Cram


Comments

  1. Complete the table to find the balance A for P dollars invested at rate r for t years, compounded n times per year. 

         n

        1

         2

        4

         12

        365

    continous

         A

    2600

         

            P = $1000, r = 10%, t = 10 years

    user iconDenise Hart on Monday, 25 February 2008, 17:17 CST # |

  2. You may want to use our Time Value of Money: Compound Interest - Formula Solver

    or review other Finance content using the Finance Table of Contents

    The formula for compounding and calculating a Future Value is

     

    FV = PV (1+i)n

    • PV: Starting amount (Present Value)
    • i: Interest rate per period
    • n: Periods of time
    • FV: Ending amount (Future Value)

    You can determine the periodic interest rate by taking the annual rate (given) and dividing that by the number of periods in a year.

    For n = 1, the interest is $100 on $1,000 and the balance at the end is $1,100. If you compound it twice in the year (n=2) then the periodic rate is 10%/2=5%, and compounded (1+0.05)^2 = 1.1025 so you end up with $1,000 * 1.1025 = $1,102.50.  Compounding semi-annually got you an extra $2.50!

    With 4 per year, the periodic rate is 10%/4=2.5%     (1+0.025) raised to the 4th gets your factor.

    If you have more questions, please feel free to post them on your blog or on the finance community blog after you join the community. 

    user iconProfessor Cram on Monday, 25 February 2008, 18:34 CST # |

  3. urgently need to score mark in physics..As exams would be soon in about 2 months..

    its my school certificate exams..

    user iconsonakshi on Wednesday, 12 August 2009, 10:30 CDT # |

  4. I need help with salvage value, how do you find out what is the salvage value, what is the formula?

    user iconcrittington on Saturday, 07 November 2009, 12:21 CST # |

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