Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 5 - Number Theory and the Real Number System - 5.2 The Integers; Order of Operations - Exercise Set 5.2: 118

Answer

Flossing daily and eating red meat more than twice a week will shrink one's life span by $3$ years.

Work Step by Step

Flossing daily stretches one's life span by 2 years. The number represents this is $2$. Eating red meat more than twice a week shrinks one's life span by 5 years. The number that represents this is $-5$. The final effect on one's life span in doing the two can be found by adding the two numbers together: Effect on one's life span $=2 + (-5) = -3$ Thus, flossing daily and eating red meat more than twice a week will shrink one's life span by $3$ years.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.