Page 295 - Basic College Mathematics with Early Integers

272 C HAPTE R 3 I FRACTIONS

11 3 5 7 16 3
23. 23. 12 - 8 + 24 24. 3 8 25. 19 26. - 3 ,- 12
3
2 -2
7 11
5
24.
3
+2
4
25. 1 # 3 2 # 1 1 2 3
#
27. 3 6 28. - a6 - b 29. ,
3 4 7 6 2 3 4
3 2 2 5 5 4 7
26. 30. a- b , a + b 31. Find the average of , , and .
4 3 6 6 3 12
Simplify the complex fraction.
27.
3
5 +
7
32.
28. 1
2 -
2
Evaluate the expression for the given replacement value.
29.
1 1 7
33. -5x; x =- 34. x , y ; x = , y = 3
30. 2 2 8
Solve.
6q feet
3
31. 35. A carpenter cuts a piece 2 feet long from a
4
1
cedar plank that is 6 feet long. How long is
2
32.
the remaining piece?
2! feet
33. 7
The circle graph below shows us how the average consumer spends money. For example,
50
of your spending goes for food. Use this information for Exercises 36 through 38.
34. Consumer Spending 36. What fraction of spending
goes for housing and food
2
Other
1 25 combined?
Education
35. 50 Food 7
Insurance 1 50
and pension 10 37. What fraction of spending goes
for education, transportation,
1
36. Entertainment 25 and clothing?
3
Health care
50
8
Housing 38. Suppose your family spent
37. 25
$47,000 on the items in the
1
Transportation graph. How much might
5
1 we expect was spent on
38. Clothing 25 health care?
Source: U.S. Bureau of Labor Statistics; based on survey
Find the perimeter and area of the figure. Copyright 2012 Pearson Education, Inc. Copyright 2012 Pearson Education, Inc.
39.
40. During a 258-mile trip, a car used
39.
3
Rectangle s foot 10 gallons of gas. How many miles would
4
40. we expect the car to travel on 1 gallon of
1 foot gas?