Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 4 - Review - Page 329: 49

Answer

24 nickels, 41 dimes

Work Step by Step

65 nickels and dimes $.05x+.1y=5.30$ $x+y=65$ $.05x+.1y=5.30$ $20*(.05x+.1y=5.30)$ $x+2y=106$ $x+y=65$ $x+2y=106$ $x+y=65$ $-1*(x+y=65)$ $-x-y=-65$ $x+2y+(-x-y)=106-65$ $y=41$ $x+y=65$ $x+41=65$ $x=24$
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