Chemistry: An Introduction to General, Organic, and Biological Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0321908449
ISBN 13: 978-0-32190-844-5

Chapter 1 - Section 1.4 - Key Math Skills for Chemistry - Additional Questions and Problems - Page 21: 1.46b

Answer

40%

Work Step by Step

There are 50 students (12+18+20) and we want to see what percentage of students received a C (20 students). $20\div50=0.4$ To make the answer into a percentage, you must multiply your answer by 100. 0.4 x 100 =40%
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