College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 2 - Summary, Review, and Test - Cumulative Review Exercises (Chapters 1-2) - Page 328: 18

Answer

4,500 dollars at 9% 1,500 dollars at 7%

Work Step by Step

0.09x+0.07(6000-x)=510 0.09x+420-0.07x=510 0.02x=90 x=4500 dollars at 9% 6000-4500=1500 dollars at 7%
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