College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter P - Prerequisites: Fundamental Concepts of Algebra - Exercise Set P.1: 130

Answer

a. The lower limit of the heart range, in beats per minute, for a 30-year-old with this exercise goal is 95 beats per minute. b. The upper limit of the heart range, in beats per minute, for a 30-year-old with this exercise goal is 114 beats per minute.

Work Step by Step

The age is known, so plug the age into the given equation for the lower limit of the range. a. $\frac{1}{2}\times(220-30) = \frac{1}{2}\times190$ $=95$ Using the same method as before, plug the age into the equation for the upper limit of the range. b. $\frac{3}{5}\times(220-30) = \frac{3}{5}\times190$ $=114$
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.