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Math Help - Question!

  1. #1
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    Question!

    Hi

    104 = 0.005*0 + 0.995*(100+y)

    Y=?

    The sol says 4.52%, but i dont know how this is derived???please help?!
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  2. #2
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    Quote Originally Posted by flynne8 View Post
    Hi

    104 = 0.005*0 + 0.995*(100+y)

    Y=?

    The sol says 4.52%, but i dont know how this is derived???please help?!
    0.005*0 = 0. So you have 104 = 0.995*(100+y).

    104 = 0.995*(100+y) => 104/0.995 = 100 + y.

    104/0.995 = 104.5226131 using a scientific calculator.

    So you have 104.5226131 = 100 + y => y = 4.5226131 ~ 5.52.
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