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7 October, 00:05

If you spend at least $50 (including shipping) at an online store, you revive a $10 gift card. You want to buy CDs that cost $12.50 each. If shipping costs $5, write and solve an inequality to find the number of CDs you must buy to revive the gift card.

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  1. 7 October, 02:03
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    Let the number of CDs bought be x, then the inequality is given by:

    12.5x + 5 > = 50

    12.5x > = 50 - 5

    12.5x > = 45

    x > = 45/12.5

    x > = 3.6

    x > = 4
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