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Mathematics, 18.11.2020 22:20 jessicawolfking

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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Agnes has 23 collectible stones, all of which are labradorite crystals or galena crystals.
La...
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