Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 4 - Section 4.3 - Systems of Linear Equations and Problem Solving - Exercise Set - Page 231: 16b

Answer

Answers will vary depending on the year chosen.

Work Step by Step

We know that the current year is 2018. Thus, we plug 18 into the equations to find: $y = -.08(18)+2.1$ $y = -.06(18) + 1.7$ Now, we use PEMDAS, a method for simplification. This acronym reminds us that we must first address parentheses, and then exponents. Next, we address multiplication and division, going from left to right. Lastly, we simplify addition and subtraction from left to right. This gives: .66 million and .62 million
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