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A mother wants to invest ​$5000 for her​ son's future education. She invests a portion of the money in a bank certificate of deposit​ (CD account) which earns 4​% simple interest and the remainder in a savings bond that earns 5​% simple interest. If the total interest earned after one year is $235​, how much money was invested in each​ account?

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  1. If there is $x at 4%, the rest (5000-x) is at 5%
    So now, just add up the interest
    .04x + .05(5000-x) = 235
    ...

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    oobleck

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