Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 5 - Relationships Within Triangles - Algebra Review - Page 323: 7


$z \gt \frac{1}{2}$

Work Step by Step

Add $10$ to each side of the inequality to isolate the constants on one side of the inequality: $-4z \lt -2$ Divide each side by $-4$ to solve for $z$. When we divide by a negative number in an inequality, we switch the sign to the opposite sign: $z \gt \frac{2}{4}$ Let's simplify the fraction by dividing the numerator and denominator by their greatest common factor, $2$: $z \gt \frac{1}{2}$
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.