Answer
C
Work Step by Step
The pair that is not a solution is the pair that, when plugged into the equation, yields an untrue statement. Thus, we see that for pair C:
$$ 3(1)-(5)(-7)<30 \\ 38 <30$$
This statement is not true.
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 2 Linear Equations and Functions - 2.8 Graph Linear Inequalities in Two Variables - 2.8 Exercises - Skill Practice - Page 136: 21
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