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Bayside Insurance offers two health plans. Under plan A Gisielle would pay the first $110 of her medical bills plus 30% of the rest. Under plan B, Gisielle would pay the first $250, but only 20% of the rest. For what amount of medical bills will plan B save Giselle money? Assume she has over $250 in bills. (I get to where I almost have it but it is still wrong.)

  • algebra - ,

    let the medical bills be x

    Plan A : Cost = .3x + 110
    Plan B : Cost = .2x + 250

    .3x + 110 = .2x + 250
    .1x = 140
    x = 1400

    They are equal at $1400, can you figure out which is best over $1400 ?
    Hint: try both equations using 1500

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