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    cierraL1's Avatar
    cierraL1 Posts: 1, Reputation: 1
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    #1

    Oct 1, 2012, 05:39 PM
    use a system of equations to solve
    A total of $4500 is invested in two funds paying 4% and 5% annual interest. The combined annual interest is $210. How much of the $4500 is invested in each fund?
    Abhimanyu Pudi's Avatar
    Abhimanyu Pudi Posts: 77, Reputation: 4
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    #2

    Oct 4, 2012, 12:53 AM
    Suppose x amount of $4500 gets 4% interest and the remaining y amount gets 5%.
    Then we get two equations in two variables as
    x+y=4500 and 4x+5y=21000
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