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22 June, 10:44

How much does a glass cube with a side of 5-cm weigh if 1cm of glass weighs 2 2/5 grams?

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  1. 22 June, 10:51
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    300 grams

    Step-by-step explanation:

    The volume of the glass cube is ...

    V = s³ = (5 cm) ³ = 125 cm³

    This is 125 times the volume of a 1-cm cube, so the weight is 125 times as much:

    125 * (2 2/5 g) = 300 g

    The glass cube weighs 300 grams.
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