Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 2 - Solving Equations - 2-5 Literal Equations and Formulas - Practice and Problem-Solving Exercises - Page 113: 33


0.4 hours or 24 minutes

Work Step by Step

Step 1) Being that the vehicle can travel 65 miles per hour, it asks for the time it would take to travel only 25 miles. We pick the formula for distance which says that distance (d) is equal to ratio (r) times time(t) Step 2) Getting to know both the formula and the data for some of its variables, We start by replacing the variables by the data provided by the exercise. Step 3) We use all the same methods (e.g: reverse operations) we have been practicing to isolate any particular variable (t). Step 4) As per the statement in step one of this solution, the distance traveled is being measured per an hour ratio which is approximately 0.4 hours (25/65). We multiply by 60 (one hour) to get the minutes (around 24 minutes).
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