Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 3 Linear Systems and Matrices - Graphing Calculator Activity - 3.1 Graph Systems of Equations - Practice - Page 159: 8

Answer

$300$ adults and $500$ children were let in.

Work Step by Step

Assume the number of adults let in is $x$. Then the number of children let in is $800-x$. Then our equation is: $7x+(800-x)5=4600\\7x+4000-5x=4600\\2x=600\\x=300$. Thus $300$ adults and $500$ children were let in.
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