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Mathematics, 26.10.2020 17:20 gungamer720

In the morning, Marco sold 12 cups of lemonade for $3. By the end of the day, he had earned $9. How many cups of lemonade did he sell in all? Kaycee wrote the proportion StartFraction 12 over 3 EndFraction = StartFraction 9 over c EndFraction for this situation.

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In the morning, Marco sold 12 cups of lemonade for $3. By the end of the day, he had earned $9. How...
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