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# maths watch

1. helen invested £6000 for n years in a saving account
she got 3% compound interest each year
at the end of n years helen had £7379.24 in savings
find value of n show working
guys pls help me on how to do this and tell me the method and whats the method called so i can do more similar questions thanks !
2. What year are you in? (asking so I know what method you can use)
3. (Original post by moz4rt)
What year are you in? (asking so I know what method you can use)
im in year 11 and came on here to ask for help cos im absolutely stumped on this question dont even know the method however through trial and error i got 7 years which is correct but i only get 1/2 marks and i want to know how to do it properly
4. (Original post by IPFromTheEast)
im in year 11 and came on here to ask for help cos im absolutely stumped on this question dont even know the method however through trial and error i got 7 years which is correct but i only get 1/2 marks and i want to know how to do it properly
Have you done logs before?
5. (Original post by moz4rt)
Have you done logs before?
nope xD my teacher gave us this paper on friday bihh was like complete for monday and ive never done logs b4 ffs they dont teach us properly all year and then expect to get 7+ in mocks or get moved down to foundation wtf
6. My method would be to make an equation, divide both sides by 6000, then use log to solve what x is.
7. you would not be expected to use logarithms....

8. (Original post by Qwalk)
My method would be to make an equation, divide both sides by 6000, then use log to solve what x is.
ill be happy with the one mark for now and later in skl ill ask my teacher to actually teach me thanks man

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