Each year, 50% of the people from City A move to City B, and 30% of the people from City B move to City A. Suppose that both cities have an initial population of 1,000. Calculate the populations of the two cities after 2 years.

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Q: −5 ≥ −11

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Q: (f) Let A, B and C be three sets. Prove by contradiction that if An BC C and r E B, then x ¢ A - C.

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Q: (c) Let p, q and r be three propositions for which p and q are true, and r is false. Determine the t...

A: QC (iii) asked and answered.

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