Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 4 - Decimals - 4.5 Dividing Decimal Numbers - 4.5 Exercises - Page 306: 60


Each child needs to collect 182 box tops.

Work Step by Step

We know from Exercise #59 that a school would need to collect 100,000 box tops to earn the maximum amount. If a school has 550 children, then each child would need to collect $100000\div 550$ box tops. We divide: $~~~~~~~~~~~~~~181.8$ $550\overline{)100000.0}$ $~~~~~~~~~~\underline{550}$ $~~~~~~~~~~4500$ $~~~~~~~~~~\underline{4400}$ $~~~~~~~~~~~~~1000$ $~~~~~~~~~~~~~~~\underline{550}$ $~~~~~~~~~~~~~~~4500$ $~~~~~~~~~~~~~~~\underline{4400}$ $~~~~~~~~~~~~~~~~~100$ We can stop the division with the remainder of 100 because we only need to round to the nearest whole number: $181.8\approx 182$ box tops Thus each child needs to collect 182 box tops.
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