Idiot\'s Guides Basic Math and Pre-Algebra

328 Appendix B

39. 15 gallons of chili


40. 66 yards of solid fabric


41. 8.1 is 18% of 45.


42. Thirty-three is 30% of 110.


43. 38 is 16% of 237.5.


44. 26% decrease

6

40 100

 x

40 x  600

x  15

5.5

7.5 90

7.5x 495

66

x

x

   x x x

45

18

100

100 810

8.1





33

110 100

110 3300

30

x

x

x







38 16

100

16 3800

237.5

x

x

x







850  629

850 100

221

850 100

850 x  22,100

x

x

x  26





26.^15

28

42

3

15

28

14

3

5

2

21

2

5

2

 

27. 73

5

19

10

38

5

19

10

38

5

10

19

4

1

4

(^22)
 

28.^3

5

4

7

21

35

20

35

41

35

16

35

 

29. 43

35

7

15

4 9

105

49

105

3114

105

49

105

365

105

313

21

  

30.^27

50

1

2

27

50

25

50

2

50

1

25



31. 3.78 + 9.3 = 13.08


32. 29.3 – 18.53 = 10.77


33. 6.23 v 2.04 = 12.7092


34. 4.374 z 1.2 = 3.645


35. 1.1 z 0.88 = 1.25


36. 20.25 ounces of water


37. 1.5 pounds of dark chocolate candies


38. 30 cups of wheat f lour

6

45

27

6 x  121

x  20

x

3

3  75

x  1.5

x

10 x  15



4

3 22.5

3 x  90

x

x  30