Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 4 - Decimals - Test - Page 325: 12

Answer

Estimate: 20 $\div$ 4 = 5 Exact: 4.175

Work Step by Step

20.04 $\div$ 4.8 Lets First find Estimate: 20.04 (rounded to) 20 4.8 (rounded to) 4 20.04 $\div$ 4.8 = 20 $\div$ 4 = 5 Now, lets find Exact: 20.04 $\div$ 4.8 = $\frac{20.04}{4.8}$ = $\frac{2004}{480}$ (multiply numerator & denominator by 100) = $\frac{2004}{480}$ = $\frac{2004\div12}{480\div12}$ (divide by common factor 12) = $\frac{167}{40}$ = 4.175 (By solving we get)
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