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10 February, 02:31

A duck's mass at birth was 0.05 kilogram. The duck gained approximately 0.042 kilogram each week. After how many weeks is the duck's mass 0.890 kilogram?

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  1. 10 February, 05:35
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    Given that the first mass of the duck is 0.05 kg and it gains weight at a rate of 0.042 kg/week, the equation that would represent this scenario is,

    y = 0.05 + 0.042x

    where y is weight and x is the number of weeks. To determine the number of weeks in which the duck's mass becomes 0.890,

    0.890 = 0.05 + 0.042x

    The value of x from the equation is 20.
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