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Wendy invested $6500.00 into two bank accounts, one paying 4% simple interest and the other paying 6%. If her annual interest from the two accounts is $344, how much did she invest at 6%?

  • math -

    x = 4%, y = 6%

    x + y = 6500

    0.04x + 0.06y = 344


    x + y = 6500
    4x + 6y = 34400

    y = 6500 - x

    4x + 6(6500-x) = 34400

    4x + 3900 -6x = 34400
    -2x + 39000 = 34400

    -2x + 39000 -39000 = 34400-39000

    -2x = -4600

    x = 2300
    y = 4200

  • math -

    Thank you, Kuai!!!

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