Chemistry 9th Edition

Published by Cengage Learning
ISBN 10: 1133611095
ISBN 13: 978-1-13361-109-7

Chapter 1 - Chemical Foundations - Active Learning Questions - Page 33: 15

Answer

Mathematician: 43.4 Scientist: 43

Work Step by Step

Scientists use significant figures during calculations. When subtracting or adding values, the value with the least amount of decimal places is used to determine the amount of decimal places of the result. 28 has no decimal places, so 15.4 + 28 does not equal 43.4, but 43.
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