March 8, 2017

# Algebra for College Students , Eighth Edition by Jerome E. Kaufmann, Karen L. Schwitters

By Jerome E. Kaufmann, Karen L. Schwitters

Make math a snap with ALGEBRA for students. utilizing daily language and many examples, Kaufman and Schwitters make it easier to follow algebra innovations and ace the try. This quantity additionally comes with Interactive Skillbuilder CD-ROM. This application is full of over eight hours of video guideline to assist all of it make feel. Plus, you will get the robust web-based iLrn Homework application that makes your assignments a breeze. Get the grade you wish with ALGEBRA for college kids.

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Algebra for College Students , Eighth Edition

Make math a snap with ALGEBRA for students. utilizing daily language and plenty of examples, Kaufman and Schwitters assist you practice algebra techniques and ace the try out. This quantity additionally comes with Interactive Skillbuilder CD-ROM. This software is full of over eight hours of video guide to assist all of it make experience.

Extra info for Algebra for College Students , Eighth Edition

Sample text

9) 86. 5) 2 3 5 87. Ϫ a Ϫ b 3 4 6 88. Ϫ 3 1 1 Ϫ a ϩ b 2 8 4 1 2 5 89. 3 a b ϩ 4 a b Ϫ 2 a b 2 3 6 3 1 3 90. 2 a b Ϫ 5 a b ϩ 6 a b 8 2 4 Operations with Real Numbers 21 94. After dieting for 30 days, Ignacio has lost 18 pounds. What number describes his average weight change per day? 95. Michael bet \$5 on each of the 9 races at the racetrack. 50 on one race. How much did he win (or lose) for the day? 96. Max bought a piece of trim molding that measured 3 11 feet in length. Because of defects in the wood, he 8 5 had to trim 1 feet off one end, and he also had to re8 3 move of a foot off the other end.

The product of two numbers is 72 and one of the numbers is n. What is the other number? 24. Tao has n nickels, d dimes, and q quarters. How much money, in cents, does she have? 25. The length of a rectangle is x yards and the width is y feet. What is the perimeter of the rectangle expressed in feet? For Problems 14 –20, evaluate each algebraic expression for the given values of the variables. 14. Ϫ7x Ϫ 3y for x ϭ Ϫ6 and y ϭ 5 15. 7 Equations and Inequalities Involving Absolute Value Most shoppers take advantage of the discounts offered by retailers.

91. Use a calculator to check your answers for Problems 51– 86. ■ ■ ■ THOUGHTS INTO WORDS 101. Explain why 8 0 ϭ 0, but is undeﬁned. 8 0 102. The following simpliﬁcation problem is incorrect. The answer should be Ϫ11. Find and correct the error. 3 Basic Concepts and Properties Properties of Real Numbers and the Use of Exponents At the beginning of this section we will list and brieﬂy discuss some of the basic properties of real numbers. Be sure that you understand these properties, for they not only facilitate manipulations with real numbers but also serve as the basis for many algebraic computations.