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12 September, 15:52

Use functions to model and solve the following problem. A salesperson earns $300 per week plus 5% commission of sales. How much must be sold to earn $800 in a week?

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Answers (2)
  1. 12 September, 16:14
    0
    300 + 0.05x = 800

    0.05x = 800 - 300

    0.05x = 500

    x = 500/0.05

    x = 10,000

    check ...

    300 + 0.05 (10,000) = 800

    300 + 500 = 800

    800 = 800 (correct)

    there must be $10,000 sold to make $800 for the week
  2. 12 September, 16:21
    0
    300 + 0.05x = 800

    0.05x = 800 - 300

    0.05x = 500

    x = 500/0.05

    x = 10,000

    check ...

    300 + 0.05 (10,000) = 800

    300 + 500 = 800

    800 = 800 (correct)

    there must be $10,000 sold to make $800 for the week
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