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10 November, 16:25

5.3. PS-17 Sales Daria sells televisions. She earns a fixed amount for each television and an additional $ 30 if the buyer gets an extended warranty. If Daria sells 11 televisions with extended warranties, she earns $1100. How much is the fixed amount Daria earns for each television?

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  1. 10 November, 16:43
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    Answer: the fixed amount that Daria earns for each television is $70

    Step-by-step explanation:

    Let x represent the fixed amount that Daria earns for each television.

    She earns a fixed amount for each television and an additional $30 if the buyer gets an extended warranty. This means that if she sells n televisions with extended warranties, the total amount that she would earn is

    xn + 30n

    If Daria sells 11 televisions with extended warranties, she earns $1100. This means that

    11x + 11 * 30 = 1100

    11x + 330 = 1100

    11x = 1100 - 330

    x = 770/11

    x = $70
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