Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapters 1-7 - Cumulative Review Exercises - Page 529: 1

Answer

estimate: 300 exact: 265.644

Work Step by Step

Estimate: Round each number. $56.62\approx60$ $4.7\approx5$ Solve. $60\times5=300$ Exact: $\ \ \ 56.52$ $\underline{x\ \ \ \ \ 4.7}$ $\ \ 39.564$ Multiply 56.52 by 7 $\underline{226.080}$ Multiply 56.52 by 40(Multiply by 4 and add a trailing 0) $265.644$ Add the interim products. The final result has 3 decimal places because the factors have a total of 3 decimal places.
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