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17 October, 22:26

Write a real-world problem that can be modeled by the inequality 10x > 5.5x + 31.5

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  1. 17 October, 22:41
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    Kim and Jane invested the same amount in two different types of investment plans.

    After a certain period, Kim earned 10 times of what he invested and Jane earned $31.5 more than 5.5 times of the money she invested.

    If Kim's earning is more than Jane's earning, find the minimum amount they invested at the beginning.

    Let x be the money they invested at the beginning.

    So, after a certain period,

    Kim's earnings = 10x and

    Jane's earnings = 5.5x + 31.5

    Since Kim earned more than Jane,

    10x > 5.5x + 31.5.
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