Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 1 - Foundations for Algebra - 1-1 Variables and Expressions - Practice and Problem-Solving Exercises: 37

Answer

Kate has 3 more pairs of shoes than Sam. If Sam has $b$ pairs of shoes, how many pairs of shoes does Kate have?

Work Step by Step

The question asks to come up with a real life situation that involves the model $b+3.$ In this situation, $b$ represents the number of pairs of shoes that Sam has, and $3$ represents how many more pairs of shoes Kate has. For example, if a question was asked regarding how many pairs of shoes Kate has, we could use the model to figure out the answer. If Sam has 5 pairs of shoes, representing $b$, Kate has 3 more pairs than Sam does. Using the model $b+3$, we plug in $5$, the number of pairs of shoes Sam has, and add $3$ to find out the number of pairs of shoes Kate has. $5+3=8$ (number of pairs of shoes Kate has)
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