mth 121 exam 4 review

# mth 121 exam 4 review - MTH121 Chapter 7 Review Reviews...

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MTH121 Chapter 7 Review Reviews are not comprehensive. Homework and worksheets should also be reviewed. 1. Write the following number in words: 3,123.4567 2. Write the sum in decimal form: 42 2 10 3 10 4 10     3. Decide whether the following fractions terminate in their decimal form. If the fraction terminates, tell in how many places, and EXPLAIN how you can tell from the fraction form. (I assume you DO NOT have a calculator for this problem.) a. 8 3 b. 15 7 4. Arrange from lowest to highest: 3 2 3 2 % 0.67 66.6% 5 2 5. Calculate mentally: Describe your method: a. 75% of 80 b. (0.25 14) 8 6. Perform the following Operations 11.05 7 . 596 7.03 0.041 2 2 1 25 7. Explain to a student why ( NOT HOW ) the following problems have the same answer. 5.8 99 . 45 and 58 9 . 459 8. Convert to a reduced fraction: 0. 45

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9. Each year a car depreciates to about 0.8 of its value from the year before. What was the original value if the car was worth 24,000 at the end of one year.
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## This note was uploaded on 10/11/2011 for the course MTH 121 taught by Professor Staff during the Spring '11 term at Moraine Valley Community College.

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mth 121 exam 4 review - MTH121 Chapter 7 Review Reviews...

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