Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 1 - Section 1.2 - Basics of Functions and Their Graphs - Exercise Set - Page 180: 131


snakes 94k, mosquitoes 755k, and snails 200k.

Work Step by Step

Step 1. Assume that the deaths by snakes are given by $x$ thousand. Then, the deaths by mosquitoes are $x+661$ and the deaths by snails are $x+106$. Step 2. Combined, we have $x+x+661+x+106=1049$ or $3x=282$ and $x=94$ thousand. Step 3. The number of human deaths per year, in thousands, by snakes, mosquitoes, and snails are 94, 755, and 200 respectively.
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