Original post by Kangie
Not sure how to rearrange this equation to find the number of years. So far I've got:
5446.25=5000x(1+(2.5/200))^2n
I think I have to use this formula but not exactly sure, I don't know what In means either:
Not sure how to rearrange this equation to find the number of years. So far I've got:
5446.25=5000x(1+(2.5/200))^2n
I think I have to use this formula but not exactly sure, I don't know what In means either:
Let n = number of "half years". Form an equation in n, and rearrange to solve. You will need to use logarithms! Ln is the natural logarithm, log to the base e.
Original post by lizard54142
Let n = number of "half years". Form an equation in n, and rearrange to solve. You will need to use logarithms!
I haven't been taught logarithms! We don't have that in the syllabus for maths studies I don't think, if it is then why the hell hasn't my teacher taught me it?!!? D:
Original post by Kangie
I haven't been taught logarithms! We don't have that in the syllabus for maths studies I don't think, if it is then why the hell hasn't my teacher taught me it?!!? D:
Well you should have been, because it is crucial for this question! You also could do it by "guessing" values of n and seeing which value is closest, you wouldn't need logarithms for that.
Original post by lizard54142
Well you should have been, because it is crucial for this question! You also could do it by "guessing" values of n and seeing which value is closest, you wouldn't need logarithms for that.
I just found the syllabus and it said: 'Not required:use of logarithms to find n, given the sum ofthe first n terms; sums to infinity.'
I was wondering if this was a trial and error question, wasn't sure though. I guess it is! Thanks
Original post by Kangie
I just found the syllabus and it said: 'Not required:use of logarithms to find n, given the sum ofthe first n terms; sums to infinity.'
I was wondering if this was a trial and error question, wasn't sure though. I guess it is! Thanks
I was wondering if this was a trial and error question, wasn't sure though. I guess it is! Thanks
Okay! So just guess values of n, if the calculation is greater than what you need take smaller n etc... ask your teacher about logarithms, they would give you an exact answer
Quick Reply
Related discussions
- TSR Community Awards 2023: Member of the Year Award - VOTING NOW CLOSED
- TSR Community Awards 2023 - NOMINATIONS NOW CLOSED
- TSR Hunger Games Mk XIII - Lockdown Special
- Oxford History DPhil applicants 2024-25
- Medicine
- Nominate the March winner!
- Ertegun scholarship 2024
- University of OXford Postgraduate and Graduate funding 2022
- Commonwealth Shared Scholarship 2023
- Girl cries after first day of work "How do you have time for your life?"
- TSR Community Awards 2023 - VOTING NOW CLOSED!
- Pay lower than stated on contract
- UCL RES/GRS/ORS Scholarship 2023
- TSR Community Awards 2023 Winners
- Who should I nominate to be my UCAS referee?
- HMRC going to hunt down tax evasions for side hustlers
- Clarendon Scholarship 2024
- Finance.
- How much do you spend per week at uni?
- Ucl grs/ors 2022
Latest
Trending
Last reply 4 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
Trending
Last reply 4 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
