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8 October, 23:55

You can buy DVDs at a local store for $15.49 each. You can buy them at an online store for $13.99 each plus $6 for shipping. How many DVDs can you buy for the same amount at the two stores?

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  1. 9 October, 02:11
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    The answer is 4.

    x - the number of DVDs

    You can buy DVDs at a local store for $15.49 each:

    15.49x

    You can buy them at an online store for $13.99 each plus $6 for shipping:

    13.99x + 6

    How many DVDs can you buy for the same amount at the two stores:

    15.49x = 13.99x + 6

    15.49x - 13.99x = 6

    1.5x = 6

    x = 6 : 1.5

    x = 4
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