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Mathematics, 29.09.2019 21:10 Geo777

Mr. katz's science class is planning a field trip. thirty people are going on the trip. there are 7 drivers and two types of vehicles, vans and cars. each van seats 6 people, including the driver, and each car seats 4 people, including a driver. if there are no extra seats in any of the vehicles, how many vans are taken?
asking again because not sure on the answer still

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