## Thinking Mathematically (6th Edition)

Published by Pearson

# Chapter 6 - Algebra: Equations and Inequalities - 6.3 Applications of Linear Equations - Concept and Vocabulary Check - Page 373: 3

#### Answer

Fill the blank with $4.00+0.15x$

#### Work Step by Step

The monthly cost consists of two parts: * the cost based on the number of messages, ** the fixed cost, regardless of the number of messages. The sum of the two is the total cost. So, total monthly cost equals (number of messages)$\times$(cost of one)+ (fixed cost) which we write as $x\cdot 0.15+4.00$ or $4.00+0.15x$ Fill the blank with $4.00+0.15x$

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.