Recent content by Capricorn1997

  1. C

    Intersection between exponential models?

    If Sally's money has been earning interest for 1 year, then Billy's has been earning interest for 4+1 years. Meaning that Billy is 4+n years ahead of Sally. While Sally is at n+1 years ? If that not true, then I am quitting math for good :(
  2. C

    Intersection between exponential models?

    Okay, when I beg your pardon. Where does the 4 come into play in Sally's equation ? if its as n+4 in ? u(n) = 250*(1.025)^(n+4),
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    Intersection between exponential models?

    If Billy went to the bank 4 years before Sally, then he is 4 years ahead of her ? Thusly the correct answer for a) is ? a) Billy: u(n) = 500 * (1.02)^(n+4) , Where n is the number of years Billy keeps his money in his account. Sally: u(n) = 250*(1.025)^(n), Where n is the number of years...
  4. C

    Intersection between exponential models?

    Sally.
  5. C

    Intersection between exponential models?

    Homework Statement Here is a math problem I would to make sure I have understood correctly. a) Billy goes to be bank. He deposite 500 dollars in his account. The bank offers a interest of 2 percent a year. Sally goes to the bank 4 years later.She deposite 250 dollars at the same bank...