Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 1 - Section 1.14 - Rate, Base, and Part - Exercises - Page 84: 34


You have to take $9$ mg.

Work Step by Step

RECALL: $P=BR$ where $B$=base, $P$=part, and $R$= rate or percent The given problem has: $B=60$ mg $R=15\%$ Solve for $P$ using the formula above to obtain: $P=BR \\P=15\% \times 60 \\P=0.15 \times 60 \\P=9 \text{ mg}$ Thus, you have to take $9$ mg.
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