Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 8 - Systems of Linear Equations and Problem Solving - 8.5 Solving Applications: Systems of Three Equations - 8.5 Exercise Set - Page 547: 38



Work Step by Step

The problem states that she sells 55 cups of coffee. If the amount she made went below 50 dollars, then she would have to make less than a dollar a cup. Since there is no coffee that she is selling for less than a dollar, there would be no solution to this equation.
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