Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 1 - Section 1.2 - Order of Operations - Exercise: 20

Answer

19

Work Step by Step

We apply the order of operations: $(19 + 8)(4 + 3) \div 21 + (8 * 15) \div (4 * 3)=(27)(7)\div 21+120\div 12=189\div 21+120\div12=9+10=19$
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