Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 3 - Section 3.4 - Linear Equations in One Variable and Problem Solving - Exercise Set: 40

Answer

The native American population of Washington state is 103 thousand. The native American population of California is 309 thousand.

Work Step by Step

Let $w$ be the native American population of Washington state. The native American population of California is $3w$. $w+3w=412$ $\longrightarrow$combine like terms $4w=412$ $\longrightarrow$multiplication property $4w\div4=412\div4$ $\longrightarrow$simplify $w=103$ $3w=3\times103=309$
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