Recent content by logicandtruth

Thank you everyone for your respones with my queries, much appreciated.

TL;DR Summary: Question about fractions Hi All, I am currently going through my old maths school book and just finished fractions and decided to google some further questions online, but I am stuck on the following question. I include the image below with the provided answer from the...

Thank you all very much for your responses. It is now much more clearer and I now understand the treatment of the operation with the parenthesis.

I am trying to imporove my general maths and revisting my pre-college text books. For the above example question, my answer was 4 which is not correct as it is -4. The only difference I can see in my working is the first operation 3a^2. Here I simply did 3 x -2^2 which is -12 but in the answer...

Thank you - I appreciate a staff member detailing to help an individual to learn for themselves. Granted, it is not an easy balance as people will have no idea as to the level of someone's ability by them just posting a question, so I understand getting the balance is not easy. I think in the...

Hi there, Yes it now all makes sense as I now understand I essentially just needed to simplify the square root of an integer. Thanks for your response, but please don't take it as a criticism but just posting an answer without explanation often does not help the intended recipient. Case in...

Hi Jameson - thanks for your response. From timestamp 10:35 speaker starts to explain how he will calculate standard deviation using variance. As the variance in the example is 200, applying the formula used in the video you would have to find the square root of 200 which is 14. Instead he...

Hi all - I wonder if you can help please. Watching a video on youtube to help me understand about the mean, variance and standard deviation but last part of video left me confused. The speaker said the following for the formula for standard deviation: Consider if the variance is 200 for the...

I see where I went wrong, I was incorrectly converting the interest to a quarter rate: Quarterly rate = (1 + annual rate )(1/4) – 1 Thank you, understood.

Hi all I am currently working on questions focusing on valuation mathematics. A question on equivalent rates is perplexing me. The first question is straightforward, but I get stuck on the second question. Q1. What is the value of the right to receive £100,000 annually in advance in...

Yes it works I must have been using the incorrect figure with my calculator. Many thanks

Hi all Trying to improve my level of maths and would like some help with the below question please. A 10-year lease with annual rental payments to be made at the end of each year, with the rent increasing by 2% each year. If the first year rent is £20 and the OCC is 10% per year, what is the...

Thank you so much HallsofIvy for your prompt reply I suspected it was something to do with my use of brackets. Its just something I need to improve on. Apologies for late response and thanks again.

Hi new to the forum and would like to improve my level of maths. I am working through a text but need some help with a compound interest question. the formula to find compound interest is I = P (1 + R)n–1. P= principal sum R= interest rate n= number of periods for which interest is calculated...