College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter P, Prerequisites - Section P.9 - Modeling with Equations - P.9 Exercises: 19

Answer

$\displaystyle \frac{25}{3+x}$

Work Step by Step

To get the concentration, we divide the amount of salt (25 oz) by the volume of the mixture. The total volume will be the sum of the 3 gallons of brine and $x$ gallons of water: $3+x$ Thus the concentration is: $\displaystyle \frac{25}{3+x}$
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.