Elementary Technical Mathematics

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

Chapter 7 - Section 7.2 - Proportion - Exercises - Page 277: 51


52.5 lb pesticide

Work Step by Step

Create a proportion using ratios of pesticide: water. $\frac{3\ lb}{20\ gal}=\frac{x\ lb}{350\ gal}$ Set the product of the means equal to the product of the extremes and solve for the variable. $20\times x = 3\times350$ $20x=1050$ $20x\div20=1050\div20$ $x=52.5$
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