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Mathematics, 25.06.2019 11:00 TradeOK158

The ratio of the the number of sally's stickers to the number of eric's stickers was 3: 5. sally then brought another six stickers and the ratio became 9: 10. how many stickers did eric have?

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The ratio of the the number of sally's stickers to the number of eric's stickers was 3: 5. sally the...
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