Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10:
ISBN 13:

Chapter 5 - Section 5.1 - Ratios, Rates, and Proportions - Exercises - Page 216: 10a

Answer

$x=-7$ or $4$

Work Step by Step

$\frac{x+1}{3} = \frac{10}{x+2}$ $(x+1)(x+2) = 10\times3$ $x^{2}+3x+2 = 30$ $x^{2}+3x-28 = 0$ $(x+7)(x-4)=0$ $x=-7$ or $4$
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.