Page 243 - Basic College Mathematics with Early Integers

Answers
Integrated Review Sections 3.1–3.4
1.
Summary on Fractions and Operations on Fractions

2.

3. Use a fraction to represent the shaded area of each figure. If the fraction is improper, also
write the fraction as a mixed number.
4. 1. 2.

5.

6. Solve.
3. In a survey, 73 people out of 85 get less than 8 hours of sleep each night.What fraction
7.
of people in the survey get less than 8 hours of sleep?
8. 9
4. Sketch a diagram to represent .
13
9.
Simplify.
10. 11 17 0 7
5. 6. 7. 8.
-11 1 -3 0
11.

Write the prime factorization of each composite number.Write any repeated factors using
12.
exponents.
13. 9. 65 10. 70 11. 315 12. 441

14. Write each fraction in simplest form.
2 24 56 72
15. 13. 14. 15. - 16. -
14 20 60 80
16. 54 90 165 245
17. 18. 19. 20.
135 240 210 385
17.
Determine whether each pair of fractions is equivalent.
18.
7 9 10 15
21. and 22. and
8 10 12 18
19.
23. Of the 50 states, 2 states are not adjacent to any other states.
20. a. What fraction of the states are not adjacent to other states?
b. How many states are adjacent to other states?
21. c. What fraction of the states are adjacent to other states?

24. In a recent year, 725 new films were released. Of these, 255 were not rated.
22.
(Source: Motion Picture Association of America)
a. What fraction were not rated? Copyright 2012 Pearson Education, Inc.
23. a. b. c.
b. How many films were rated?
c. What fraction of films were rated?
24. a. b. c.
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