Elementary Technical Mathematics

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

Chapter 7 - Section 7.1 - Ratio - Exercises - Page 271: 58


5 hr

Work Step by Step

First determine the total number of drops to be administered. $500\ mL\times\frac{15\ drops}{mL}=7500\ drops$ Divide the number of drops by the flow rate to find the time. $7500\ drops\div\frac{25\ drops}{1\ min}=7500\ drops\times\frac{1\ min}{25\ drops}=300\ min$ $300\ min\times\frac{1\ hr}{60\ min}=5\ hr$
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