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14 December, 03:04

Hugh bought some magazines that cost $3.95 each and some books that cost $8.95 each. He spent a total of $47.65. If Hugh bought 3 magazines, how many books did he buy? The equation that models the problem is 3.95m + 8.95b = 47.65, where m is the number of magazines and b is the number of books.

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  1. 14 December, 04:11
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    He bought 4 books.

    3.95m + 8.95b = 47.65

    If he bought 3 magazines, m = 3

    (3.95) 3 + 8.95b = 47.65

    11.85 + 8.95b = 47.65

    now we subtract 11.85 from both sides

    8.95b = 35.80

    we divide both sides by 8.95

    b=4

    Hugh bought 4 books.
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