Students at a community college were surveyed to determine their favorite music genre. The pie chart below shows the fraction of the 540 students who chose a specific genre. Use this information to answer Exercises 45–50. 1 4 www.mhhe.com/messersmith 1 5 Country 1 3 Pop Rap 3 20 Rock 1 15 Jazz 45) What fraction of the students prefer pop or rap music? 46) What fraction of the students prefer a genre other than pop or rock? 47) How many students prefer rap music? 48) How many students prefer country or jazz music? 49) How many students do not prefer pop music? 50) Verify that the fi ve fractional parts sum to 1. (4.5) 51) Explain two methods for adding mixed numbers. 52) Is 5 10 7 in simplest form? Why or why not? Add or subtract, as indicated. 53) 3 3 8 8 7 12 54) 5 1 4 7 5 9 55) 12 6 7 6 7 21 56) 15 4 5 7 7 10 57) 9 4 5 5 9 20 58) 12 5 9 8 3 4 59) 23 5 16 17 3 4 60) 19 3 5 6 22 35 61) 17 1 5 13 5 6 62) 11 5 24 6 5 8 63) 4 5 8 3 64) 8 3 7 5 65) 8 2 7 10 66) 17 9 1 6 67) 3 13 15 9 5 6 2 9 10 68) 10 4 5 7 7 10 3 5 8 Solve each problem. 69) Herb wants to surround his rectangular rose garden with a small white picket fence. If Herb’s garden is 10 1 2 ft long and 6 3 4 ft wide, what length of fence does he need to surround his garden? 70) Deanna wants to apply weather stripping to all four sides of her entry door frame. If the door frame is 6 2 3 ft tall and 2 1 2 ft wide, what length of weather stripping does Deanna need? 71) A police offi cer needs to mark off a crime scene (in the shape of the fi gure below) with crime scene tape. What length of tape will she need? 3 4 5 yd 1 3 4 yd 1 2 3 yd 5 yd 72) Find the perimeter of the fi gure below. 2 ft 1 2 4 ft 3 4 1 ft 1 4 2 ft 3 4 3 ft 3 4 6 ft (4.6) For Exercises 73–78, approximate the location of each fraction or mixed number on the given number line. 0 1 2 3 4 73) 19 5 74) 5 3 75) 3 3 4 76) 2 3 8 77) 7 9 78) 5 7 Fill in the blank with or . 79) 10 21 _____ 11 21 80) 16 7 _____ 15 7 81) 3 4 _____ 9 13 82) 5 9 _____ 12 21 CHAPTER 4 Review Exercises 287
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