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    Hey guys would anyone able to guide me on answerigng questions 7&8?Name:  IMG-20160323-WA0002.jpg
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    (Original post by 9clpc9)
    Hey guys would anyone able to guide me on answerigng questions 7&8?Name:  IMG-20160323-WA0002.jpg
Views: 58
Size:  501.1 KB
    Start with Q7:

    1st year : A
    2nd year : A x 1.035
    3rd year : A x 1.035 x 1.035

    This forms a geometric sequence with 1st term A and ratio 1.035. What's the nth term of this sequence?

    Then which value of n gives 2A?

    Please post your working if you get stuck.
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    (Original post by notnek)
    Start with Q7:

    1st year : A
    2nd year : A x 1.035
    3rd year : A x 1.035 x 1.035

    This forms a geometric sequence with 1st term A and ratio 1.035. What's the nth term of this sequence?

    Then which value of n gives 2A?

    Please post your working if you get stuck.

    Hey, thank you.

    This is what I got:
    Name:  image.jpg
Views: 40
Size:  422.6 KBAttachment 514997514999
    Attached Images
     
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    (Original post by 9clpc9)
    Hey, thank you.

    This is what I got:
    Name:  image.jpg
Views: 40
Size:  422.6 KBAttachment 514997514999
    I don't have time to check your working but you can easily check if your answers work.

    Let us know if you think your answers are incorrect or aren't sure.
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    (Original post by notnek)
    I don't have time to check your working but you can easily check if your answers work.

    Let us know if you think your answers are incorrect or aren't sure.
    I checked the markscheme and my answers aren't right. The answers are 1 lower than what I got for n, ie. 11.2 and 20.15
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    (Original post by 9clpc9)
    I checked the markscheme and my answers aren't right. The answers are 1 lower than what I got for n, ie. 11.2 and 20.15
    If you are the person in the group chat, then I have already helped you.

    But in case not. N is fine. No need to use n-1.
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    (Original post by Kvothe the arcane)
    If you are the person in the group chat, then I have already helped you.

    But in case not. N is fine. No need to use n-1.
    Yeah it's Celine here, haha.
 
 
 
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