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# Pre-Cal 20S January 7, 2008

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Rational equations review. Distance, rate, and time problems.

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### Pre-Cal 20S January 7, 2008

1. 1. DRT Problems ... Rate Distance BMW 320d speedometer by ﬂickr user storem Time
2. 2. Solve: Simplify: Remember the difference?
3. 3. Solve and state restrictions if any ... Solving Equations
4. 4. Solve and state restrictions if any ... Solving Equations
5. 5. Solve and state restrictions if any ... Solving Equations
6. 6. Luigi and Monica live 27 km apart. At noon they begin to jog toward each other from their respective homes. Luigi jogs at 4 km per hour and Monica jogs at 5 km per hour. At what time will they meet?
7. 7. Mark can ride his bicycle 2 km/h faster than Tamara. They begin at the same spot and at the same time, travelling in opposite directions. After travelling for the same length of time they stop and realize that Mark has travelled 27 km and Tamara has travelled 21 km. How fast was Mark travelling?
8. 8. ` Simplify and state restrictions if any ... HOMEWORK Division
9. 9. Simplify and state restrictions if any ... Division
10. 10. Simplify and state restrictions if any ... Division
11. 11. Simplify and state restrictions if any ... Division
12. 12. Is the following reduction acceptable for each expression? Explain.
13. 13. Write the polynomial A if
14. 14. Solve: