Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapters 1-3 - Adding and Subtracting Fractions - Cumulative Review - Page 262: 14


Estimate: 70$\times$130 = 9100 inch Exact = $9132\frac{1}{2} $inch

Work Step by Step

We know that Fles can jump 130times higher then their oen height. Now, we need to find the how higher a $70\frac{1}{4} inch$ heighted person can jump? Then we need to multiply the height with 130 i.e. = $70\frac{1}{4} \times 130$ inch. Now, Let's find Estimate : $70\frac{1}{4} $ (round off) 70 i.e. $70\frac{1}{4} \times 130$ inch = 70$\times$130 = 9100 inch Now Let's find Exact: $70\frac{1}{4} \times 130$ inch. = $\frac{70\times4+1}{4} \times 130$ inch. = $\frac{281}{4} \times 130$ inch. = $\frac{281}{2} \times 65$ inch. = $\frac{18265}{2}$ inch = $9132\frac{1}{2} $inch
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