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26 June, 06:32

harley is saving money for a school trip. she has made 15 bracelets and 20 bookmarks to sell. she expects to earn $195. if the bracelets cost 3 times as much as the bookmarks, how much does each bracelet and bookmark cost?

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  1. 26 June, 09:45
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    Answer: bookmarks cost $3 and bracelets cost $9

    explanation:

    (Bracelets = b)

    (Bookmarks = m)

    15b + 20m = 195

    Bracelets cost 3 times as much as bookmarks

    b = 3m

    Substitute b for 3m

    15 (3m) + 20m = 195

    Multiply 15 and 3

    45m + 20m = 195

    Add 45 and 20

    65m = 195

    To get m on its own, divide 65 from both sides.

    195 divided by 65 is 3

    m = 3

    Bookmarks cost $3

    Bracelets cost 3 times as much as bookmarks

    So $3 * 3 = $9
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