Elementary Technical Mathematics

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

Chapter 1 - Section 1.8 - Multiplication and Division of Fractions - Exercise - Page 49: 75


14$\frac{1}{2}$ lb

Work Step by Step

Given the baby weigh 7$\frac{1}{4}$ lb at the time of birth, Baby wiegth got doubled after 3 months We need to find the baby's weight after 3 months = 2 x 7$\frac{1}{4}$ lb = 2 x $\frac{29}{4}$ lb =$\frac{29}{2}$ lb =14$\frac{1}{2}$ lb
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