Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 7 - Exponents and Exponential Functions - 7-4 Division Properties of Exponents - Practice and Problem-Solving Exercises - Page 443: 54



Work Step by Step

You have to find how many total average hours spent online in a year per each adult: $\frac{93000000000 hours}{163000000adults}$ $\approx$ 570.55 $\frac{hours}{adult}$. To find the average hours per day per adult in a year, divide by 365 days because there are 365 days in a year: $\frac{570.55{\frac{hours}{adult}}}{365 days}$ =1.56$\frac{hours/day}{adult}$
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