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Math Help - Use an algebraic equation to find a solution (word problem)

  1. #1
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    Unhappy Use an algebraic equation to find a solution (word problem)

    Studying for test tomorrow and I'm stuck on how to create an equation for this word problem:

    Linda invested $5000 at a local bank. Part was invested at 6% simple interest and the remainder at 10% simple interest. At the end of one year, Linda had earned $428 interest. How much was invested at each rate?

    Any help is appreciated, thank you!!
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  2. #2
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    Re: Use an algebraic equation to find a solution (word problem)

    x = amount invested at 6%

    5000 - x = amount invested at 10%

    (.06)x + (.10)(5000 - x) = 428
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