Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 1 - Equations and Inequalities - 1.2 Applications and Modeling with Linear Equations - 1.2 Exercises - Page 100: 2

Answer

$d=20$ miles

Work Step by Step

RECALL: For situations involving time (t) , distance (d) and rate (r, sometimes referred to as speed), the formula for distance is: $d=rt$ The given situation has: $r=80$ mph $t =15$ minutes = $\dfrac{1}{4}$ hour Use the formula above to obtain: $d=rt \\d=80(\frac{1}{4})$ $\\d=20$ 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.