Basic College Mathematics (10th Edition)

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

Chapter 7 - Measurement - 7.5 Metric - U.S. Measurement Conversions and Temperature - 7.5 Exercises - Page 514: 15


a.) 0.2 ounce (rounded) b.) probably not

Work Step by Step

Given, for the 2000 Olympics, the 3M Company used 5 g of pure gold to coat Michael Johnson’s track shoes a.) To find ounces of gold used, to the nearest tenth, We’re changing from a metric weight unit to a U.S. weight unit. In the “Metric to U.S. Units” side of the table, you see that 1 gram = 0.035 ounce. Two unit fractions can be written using that information.(1 gram)/(0.035 ounces) Or(0.035 ounces)/(1 gram). Multiply by the unit fraction that allows you to divide out grams (that is, grams is in the denominator). 5 g * (0.035 ounces)/(1 gram) = 0.175 ounces = 0.2 ounce (rounded) b.) No this is not enough extra weight to slow down because 5 g gold or 0.175 ounces is very little amount.
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