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 - Page 70: 21


$400$ miles

Work Step by Step

Total cost of renting the truck is: $C=65*d+0.20*m$, where $d$=days rented and $m$=miles driven. For Michael, the cost is \$275 for 3 days: $275=65*3+0.2*m$ We solve for $m$: $m=(275-65*3)/0.2=80/0.2=400$ miles
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.