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Mathematics, 11.10.2019 20:00 dramaqueenactr2040

When a bottle is 1/2 filled with water, it weighs 2.6kg. the bottle weighs 4kg when it is full. find the weight of the empty bottle.

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When a bottle is 1/2 filled with water, it weighs 2.6kg. the bottle weighs 4kg when it is full. find...
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