148 Chapter 2 Fractions and Mixed Numbers: Multiplication and Division 2 3 a7 b 3 25. 26. 27. 28. a5 b 3 10 1 2 29. 30. 31. 32. Concept 2: Division of Mixed Numbers For Exercises 33–48, divide the mixed numbers. Write the answer as a mixed number, proper fraction, or whole number. (See Example 3.) 1 3 5 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 1 2 45. 46. 2 47. 2 48. Concept 3: Applications of Multiplication and Division of Mixed Numbers 49. Tabitha charges $8 per hour for baby sitting. 50. Kurt bought acres of land. If land costs If she works for hr, how much should $10,500 per acre, how much will the land cost him? she be paid? (See Example 4.) 51. According to the U.S. Census Bureau’s 52. Kayla has a bottle that contains 12 oz of medicine. Valentine’s Day Press Release, the average She is instructed to take a dose of oz twice a day. American consumes 7 10 lb of chocolate How many doses will the 12-oz bottle provide? in a year. Over the course of 25 years, how many pounds of chocolate would the average American consume? 53. The age of a small kitten can be approximated by the following rule. The 34 kitten’s age is given as 1 week for every quarter pound of weight. (See Example 5.) a. Approximately how old is a 1-lb kitten? b. Approximately how old is a -lb kitten? 54. Richard’s estate is to be split equally among his three children. If his estate is worth million, how much will each child inherit? 55. Lucy earns $14 per hour and Ricky earns $10 per hour. Suppose 4212 Lucy worked hr last week and Ricky worked hr. a. Who earned more money and by how much? b. How much did they earn altogether? 56. A roll of wallpaper covers an area of . If the roll is ft wide, how long is the roll? 117 28 ft 24 2 3512 $134 218 25 3 4 434 223 4 2 3 3 3 1 7 5 13 1 1 3 2 7 6 1 2 1 2 2 5 6 1 6 0 1 9 11 0 6 7 12 5 5 6 2 1 3 4 1 2 2 1 4 7 3 5 1 7 12 2 1 2 1 1 16 12 4 5 2 3 5 5 8 9 1 1 10 3 4 1 7 10 2 3 4 a6 1 8 b a2 3 4 b a8 7 2 5 b a2 9 b a1 4 5 a1 b a1 b 1 4 a3 b a2 b 1 7 b 0 6 1 10 4 5 8 a2 0 1 4 b 10
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