Mathematics
Mathematics, 30.12.2019 03:31, Tyrant4life

An envelope with 96 bookmarks in it has a mass of 1467 grams. the same envelope with 49 bookmarks in it has a mass of 762 grams. find the mass of the envelope when it is empty.

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An envelope with 96 bookmarks in it has a mass of 1467 grams. the same envelope with 49 bookmarks in...

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