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Math Help - Help please

  1. #1
    Junior Member
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    Oct 2008
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    Help please

    1. Mr. Adler and Mr. Bosch work for the same company making $40,000 and $38,000 a year,respectivly. The employer wishes to raise both there saleries for the next year so they will be making the same amount of money as each other. The employer will use $12,000 for the total of their raises. By what % will Mr. Bosch salary be raised? Exspress ur answer to the nearest tenth.


    2.Due to a bowling score of 204 in his last game, Remy raised his average from exactly 156 to 158. What score must eh bowl in the next game to raise his overall everage to exactly 159?


    3. Of all four-digit positive integers contaning only digits from the set {2, 4, 6, 8} what fraction of them have at least one of their digits repeated? Exspress ur answer as a common fraction.
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  2. #2
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    poke
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  3. #3
    Junior Member
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    baltimore
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    1)
    40,000+40,000*x/100=38,000+38,000*y/100
    the sum of their augmentation is 12,000 ,so we have

    40,000*x/100+38,000*y/100=12,000
    400x+380y=12,000
    20x+19y=600

    from the first equation,you will get
    20x-19y=-100
    you do combination and you will get
    40x=500
    4x=50
    x=12.5

    19y=600-20(12.5)
    19y=600-250
    19y=350
    y=18.4
    the first will get an augmentation of 12.5%
    the second 18.4%
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