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31 October, 03:06

Morgan uses 2 oz of dog shampoo to bathe her dog each week. After 4 wk, 34 oz of shampoo remains.

What is the total number of weeks that Morgan can use this shampoo before the bottle is empty?

? wk

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  1. 31 October, 03:31
    0
    The amount of shampoo required by Morgan each week to bathe her dog = 2 oz

    So

    The amount of shampoo required by Morgan in 7 days to bathe her dog = 2 oz

    The amount of shampoo remaining after 4 weeks = 34 oz

    So the amount of shampoo remaining after (4 * 7) days = 34 oz

    The amount of shampoo remaining after 28 days = 34 oz

    The amount of shampoo that Morgan uses in 28 days = (2/7) * 28 oz

    = 2 * 4 oz

    = 8 oz

    Then

    8 oz of shampoo is required by Morgan in = 28 days

    Then

    34 oz of shampoo will be used in = (28/8) * 34 days

    = 7 * 17 days

    = 119 days

    So

    The total number of

    days before the bottle becomes empty = 119 + 8 oz

    = 127 days
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