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Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.
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Mathematics, 21.06.2019 23:00
Solve the problem by making up an equation. a man could arrive on time for an appointment if he drove the car at 40 mph; however, since he left the house 15 minutes late, he drove the car at 50 mph and arrive 3 minutes early for the appointment. how far from his house was his appointment?
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You know the right answer?
What's the solution: 7x = 5x - 25 + 30...
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