Chap7 Section8

Elementary and Intermediate Algebra: Graphs & Models (3rd Edition)

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Section 7.8 Applications of Rational Functions 743 Version: Fall 2007 7.8 Exercises 1. The sum of the reciprocals of two consecutive odd integers is 16 63 . Find the two numbers. 2. The sum of the reciprocals of two consecutive odd integers is 28 195 . Find the two numbers. 3. The sum of the reciprocals of two consecutive integers is 19 90 . Find the two numbers. 4. The sum of a number and its recip- rocal is 41 20 . Find the number(s). 5. The sum of the reciprocals of two consecutive even integers is 5 12 . Find the two numbers. 6. The sum of the reciprocals of two consecutive integers is 19 90 . Find the two numbers. 7. The sum of a number and twice its reciprocal is 9 2 . Find the number(s). 8. The sum of a number and its recip- rocal is 5 2 . Find the number(s). 9. The sum of the reciprocals of two consecutive even integers is 11 60 . Find the two numbers. 10. The sum of a number and twice its reciprocal is 17 6 . Find the number(s). 11. The sum of the reciprocals of two numbers is 15 / 8 , and the second number is 2 larger than the first. Find the two numbers. Copyrighted material. See: 1 12. The sum of the reciprocals of two numbers is 16 / 15 , and the second num- ber is 1 larger than the first. Find the two numbers. 13. Moira can paddle her kayak at a speed of 2 mph in still water. She pad- dles 3 miles upstream against the cur- rent and then returns to the starting lo- cation. The total time of the trip is 9 hours.
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