Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 1 - Foundations for Algebra - Pull it All Together: Task 3C

Answer

Total cost is $200-8c$.

Work Step by Step

The cost of CDs is $12c$. The cost of DVDs is $200-20c$. total cost=$12c+(200-20c)$ $=12c+(200+(-20c))$ $=200+(12c+(-20c))$ $=200+(-8c)$ $=200-8c$ Use the commutative an associative properties of addition to combine like terms.
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