Algebra 1

by Hall, Prentice

Published by Prentice Hall

ISBN 10: 0133500403

ISBN 13: 978-0-13350-040-0

Chapter 6 - Systems of Equations and Inequalities - 6-4 Application of Linear Systems - Lesson Check - Page 386: 1

Answer

number of copies: 300

Work Step by Step

c=number of copies, m=amount of money each copy cost m=3c m=1.5c+450 3c=1.5c+450 3c-1.5c=1.5c-1.5c+450 1.5c=450 c=300

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