Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter R - Section R.3 - Decimals and Percents - Exercise Set - Page R-26: 30



Work Step by Step

36$\div$0.9 Move the decimal in 0.9 one place to the right to make it a whole number (9). To accommodate for this, add one zero to 36 (360). 360$\div$9 Use long division to divide this, and the answer will be 40. Alternatively, notice that 36$\div$9 = 4, and that 360 = 36 * 10, so 360$\div$9 = 4 * 10 = 40.
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