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Mathematics, 25.03.2020 11:12 swordnewsnetwork

Agnes has 23 collectible stones, all of
which are labradorite crystals or galena
crystals. Labradorite crystals are worth
$20 each, while galena crystals are
worth $13 each. Agnes earns $439 by
selling her entire collection. How many
stones of each type did she sell?

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Answers: 3
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Agnes has 23 collectible stones, all of
which are labradorite crystals or galena
crystal...

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