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Mathematics, 17.11.2020 04:30 gabrielar80

While sitting in the quad on central campus, I counted 9 students riding 2-wheeled mopeds or 3-wheeled scooters, which made a total of 21 wheels. How many mopeds and how many scooters passed by me?

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While sitting in the quad on central campus, I counted 9 students riding 2-wheeled mopeds or 3-wheel...
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