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: 57


2.5 mL/min

Work Step by Step

Use standard conversion factors to restate the ratio in the requested units of measure. Reduce fractions to express in lowest terms. $\frac{750mL}{5hr}=\frac{750mL}{5hr}\times\frac{1hr}{60min}=\frac{750mL}{300min}=\frac{750\div150\ mL}{300\div150\ min}=\frac{5\ mL}{2\ min}$ Restate the improper fraction as a mixed number. $\frac{5\ mL}{2\ min}=2.5\ mL/min$
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