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: 53


108 lb

Work Step by Step

Create a proportion using ratios of bu : lb. $\frac{100\ bu}{90\ lb}=\frac{120\ bu}{x\ lb}$ Set the product of the means equal to the product of the extremes and solve for the variable. $90\times 120 = 100\times x$ $10800=100x$ $10800\div100=100x\div100$ $108=x$
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