Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 8 - Personal Finance - 8.1 Percent, Sales Tax and Discounts - Exercise Set 8.1 - Page 496: 53


The percent increase in average yearly earnings is 100%

Work Step by Step

Students majoring in social work earn $\$38,000$ per year. Students majoring in engineering earn $\$76,000$ per year. We can find the increase in average yearly earnings. $\$76,000 -\$38,000 = \$38,000$ We can express this increase in average yearly earnings as a decimal of the average yearly earnings for students majoring in social work. $\frac{\$38,000}{\$38,000} = 1.0$ To express a decimal as a percent, we can move the decimal point two places to the right. $1.0 = 100\%$ The percent increase in average yearly earnings is 100%.
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