Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapters 1-2 - Cumulative Review Exercises - Page 196: 21


$47000$ hairs

Work Step by Step

We know that we lose $100$ hairs per day. To find the number of hairs lost in $2$ years, we multiply by the number of days in a year (365) and the number of years (2): $100~hairs/day*365~days/year*2~years=36500*2=73000$ hairs Since we started with $120000$ hairs, we find the number remaining by subtraction: $hairs~left=120000-73000=47000$ hairs
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