Basic College Mathematics (10th Edition)

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

Chapter 4 - Decimals - 4.5 Dividing Decimal Numbers - 4.5 Exercises - Page 305: 31


$\approx \$4.00$ per pair

Work Step by Step

We see that 6 pairs of tights cost $\$23.98$. To find out how much one pair would cost, we divide: $~~~~~~3.996$ $6\overline{)23.980}$ $~~~~\underline{18}$ $~~~~~~~59$ $~~~~~~~\underline{54}$ $~~~~~~~~~~58$ $~~~~~~~~~~\underline{54}$ $~~~~~~~~~~~~40$ $~~~~~~~~~~~~\underline{36}$ $~~~~~~~~~~~~~~4$ We can stop the division with the remainder of 4 because we only need to round to the nearest cent ($\$0.01$): $3.996\approx \$4.00$
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