Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 3 - Introduction to Graphing - 3.5 Slope - 3.5 Exercise Set: 16

Answer

$15$ Calories burnt per minute of running

Work Step by Step

2 minutes of running burns 30 Calories. 4 minutes of running burns 60 Calories. To find the rate a runner burns Calories, divide the change in Calories burnt by the change in the time: average rate of Calories burned while running $=\dfrac{60-30}{4-2}=\dfrac{30}{2}=15$ Calories per minute.
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