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Math Help - Direct Variation Problem

  1. #1
    Newbie ZendikZombie's Avatar
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    Direct Variation Problem

    I urgently need help with this problem, and i cant get it for the life of me!

    "Alex works part time at a clothing store. She is paid an hourly rate of 10.25/h, and also earns a commision of 3.5% of her total weekly sales.

    Alex works at the store 12 hours a week.

    If Alex's goal is to earn 150$ every week, what do her total weekly sales need to be?"


    Please help!
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  2. #2
    Moo
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    Hello,

    Quote Originally Posted by ZendikZombie View Post
    I urgently need help with this problem, and i cant get it for the life of me!

    "Alex works part time at a clothing store. She is paid an hourly rate of 10.25/h, and also earns a commision of 3.5% of her total weekly sales.

    Alex works at the store 12 hours a week.

    If Alex's goal is to earn 150$ every week, what do her total weekly sales need to be?"


    Please help!
    Let x be the total weekly sales.

    If she wants to earn 150$ a week, then we may have the equation :

    150=\underbrace{10.25}_{\text{hourly rate}} \times \overbrace{12}^{\text{hours a week}}+\underbrace{\frac{3.5}{100}}_{\text{commiss  ion}} \times \quad x

    Solve for x
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  3. #3
    Newbie ZendikZombie's Avatar
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    Thanks for the help
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