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13 December, 00:57

Marissa wants to buy a DVD player that runs for at least 150 dollars she already saved $80 and plans to save an additional $10 each week run in quality that represents this

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  1. 13 December, 02:07
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    Price of DVD player ≥ $150

    Saved = $80

    Amount needed = $150 - $80 = $70

    Saving per week = $10

    Let x be the number of weeks needed:

    80 + 10x ≥ 150

    10x ≥ 150 - 80

    10x ≥ 70

    x ≥ 70 : 10

    x ≥ 7

    Answer: She needs to save for for at least 7 weeks.
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