Question
When 710 of a jar is filled with coffee, it weighs 970 g. When the jar is half-filled with coffee, it weighs 850 g. Find the mass of the empty jar.
4 m

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When 710 of a jar is filled with coffee, it weighs 970 g. When the jar is half-filled with coffee, it weighs 850 g. Find the mass of the empty jar.