Test 3.1 and 3.2 (Homework) PDF

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Assignment Previewer This is a preview of the questions in your assignment, but it does not reflect all assignment settings. Open the student view to interact with the actual assignment. Show answer key SHOW NEW RANDOMIZATION Test 3.1 and 3.2 (Homework) INSTRUCTOR Janine Patterson Terre Haute South HS, IN Current Score QUESTION 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2 POINTS –/1 –/1 –/3 –/1 –/1 –/1 –/1 –/1 –/1 –/1 –/2 –/1 –/3 –/2 –/4 –/4 –/3 –/1 –/5 – TOTAL SCORE –/108 0.0% Assignment Submission & Scoring Assignment Submission For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or change the answer. Assignment Scoring Your last submission is used for your score. 1. [–/1 Points] DETAILS AUFQR1 3.1.003. Write the ratio in simplest form using a fraction. Family Budget ($) Housing Food Transportation Taxes Utilities Miscellaneous Total 1,600 800 600 900 100 800 4,800 Use the table to find the ratio of transportation costs to total expenses. 1/8 2. [–/1 Points] DETAILS AUFQR1 3.1.004. Write the ratio in simplest form using a fraction. Family Budget ($) Housing Food Transportation Taxes Utilities Miscellaneous Total 1,800 900 800 900 500 500 5,400 Use the table to find the ratio of food costs to total expenses. 1/6 3. [–/3 Points] DETAILS AUFQR1 3.1.006. Write the ratio in simplest form using a fraction. Family Budget ($) Housing Food Transportation Taxes Utilities Miscellaneous Total 2,100 700 500 800 400 700 5,200 A financial advisor recommends that the ratio of housing cost to food cost be less than 1.7. Does the family budget in the table satisfy that recommendation? ---Select--- No , the housing to food cost ratio is 3 , which is ---Select--- greater than than 1.7. 4. [–/1 Points] DETAILS AUFQR1 3.1.007. Write the ratio in simplest form using a fraction. A house with an original value of $240,000 increased in value to $330,000 in 5 years. What is the ratio of the increase in value to the original value of the house? 3/8 5. [–/1 Points] DETAILS AUFQR1 3.1.010. Write the expression as a unit rate. 138 mi on 6 gal of gasoline 23 mpg 6. [–/1 Points] DETAILS AUFQR1 3.1.011. Write the expression as a unit rate. 476 words typed in 7 min 68 words/min 7. [–/1 Points] DETAILS AUFQR1 3.1.012. Write the expression as a unit rate. 100 m in 8 s 12.5 m/s 8. [–/1 Points] DETAILS AUFQR1 3.1.014. Write the expression as a unit rate. 3,900 ft 2 of wall covered with 6.5 gal of paint 2 600 ft /gal 9. [–/1 Points] DETAILS AUFQR1 3.1.015. A machinist earns $610.50 for working a 37-hour week. What is the machinist's hourly rate of pay? $ 16.50 per hour 10. [–/1 Points] DETAILS AUFQR1 3.1.016. The space shuttle's solid rocket boosters were pairs of rockets used during the first 2 min of powered flight. Each booster burns 670,400 kg of propellant in 2.5 min. How much propellant (in kg) does each booster burn in 1 min? 268,160 kg 11. [–/2 Points] DETAILS AUFQR1 3.1.017. During filming, an IMAX camera uses 65-mm film at a rate of 5.6 ft/s. (a) At what rate (in ft/min) does the camera go through film? 336 ft/min (b) How quickly does the camera use a 600-foot roll of 65-mm film (in seconds)? Round to the nearest second. 107 sec 12. [–/1 Points] DETAILS AUFQR1 3.1.018. Which is the more economical purchase—a 30-ounce jar of mayonnaise for $4.79 or a 36-ounce jar of mayonnaise for $6.79? The 30-ounce jar is more economical. The 36-ounce jar is more economical. 13. [–/3 Points] DETAILS AUFQR1 3.1.018.EP. A 36-ounce jar of mayonnaise is sold for $5.49. What is the unit price (in dollars per oz)? (Round your answer to the nearest cent.) $ 0.15 /oz A 42-ounce jar of mayonnaise is sold for $7.49. What is the unit price (in dollars per oz)? (Round your answer to the nearest cent.) $ 0.18 /oz Which is the more economical purchase? The 36-ounce jar is more economical. The 42-ounce jar is more economical. 14. [–/2 Points] DETAILS AUFQR1 3.1.022. Suppose the following table shows the population and area of three countries. The population density of a country is the number of people per square mile. Area Country Population (square miles) Country A 12,751,000 2,918,000 Country B 1,241,696,000 1,156,000 Country C 311,369,000 3,515,000 (a) Which country has the lowest population density? Country A Country B Country C (b) How many more people per square mile are there in Country B than in Country C? Round to the nearest whole number. 986 15. [–/4 Points] DETAILS AUFQR1 3.1.023. An e-mail tracking company compiled the following estimates on consumer use of e-mail worldwide (data for 2021 are estimated). Number of users Messages per day Year (in millions) (in billions) 2017 2,851 219.8 2019 3,193 243.9 2021 3,481 276.7 (a) Complete the last column of the following table by calculating the estimated number of messages per day that each user receives. Round to the nearest tenth. Number of users Messages per day Messages per person Year (in millions) (in billions) per day 2017 2,851 219.8 77.1 2019 3,193 243.9 76.4 2021 3,481 276.7 79.5 (b) The predicted number of messages per person per day in 2021 is how many times the estimated number in 2017? Round to the nearest hundredth. 1.03 times greater 16. [–/4 Points] DETAILS AUFQR1 3.1.024. One suggestion to the buy-versus-rent question can be answered using the price-to-rent ratio. Find two houses of similar size and quality in comparable neighborhoods, one for sale and the other for rent. Divide the price of the house for sale by the total cost of the rental for 1 year. If the quotient is higher than 20, renting might be the better option. If the quotient is below 15, buying might be the better option. (a) A house in San Diego, California, is priced at $510,000. The rent on a comparable house is $3,100 per month. Find the price-to-rent ratio. Round to the nearest tenth. 13.7 Does the ratio suggest that you buy or rent a home in San Diego? buy rent (b) A house in Orlando, Florida, is priced at $296,000. The rent on a comparable house is $1,050 per month. Find the price-to-rent ratio. Round to the nearest tenth. 23.5 Does the ratio suggest that you buy or rent a home in Orlando? buy rent 17. [–/3 Points] DETAILS AUFQR1 3.1.025. The following table shows the number of full-time students and the number of full-time faculty at several universities in a recent year. Using this table, round ratios to the nearest whole number. University Students Faculty Swarthmore 1,581 200 Rice 6,719 1,049 Vassar 2,435 312 UCLA 41,908 932 Villanova 10,711 893 † (a) Calculate the student-faculty ratio at Swarthmore College. Write the ratio using the word to. (Round your answer to the nearest integer.) 8 to 1 What does this ratio mean? There are 8 students per faculty member at Swarthmore College. (b) Which school listed has the lowest student-faculty ratio? Swarthmore Rice Vassar UCLA Villanova 18. [–/1 Points] DETAILS AUFQR1 3.1.027.MI. According to the Bureau of Labor Statistics, in a recent year, there were 16,357,000 women aged 25 to 34 who were employed and 5,307,000 who were unemployed but looking for work. What is the rate per 1,000 women aged 25 to 34 who were employed? Round to the nearest whole number. 755 employed women per 1,000 women Solution or Explanation 16,357,000 ✕ 1,000 ≈ 755 5,307,000 + 16,357,000 755 employed women per 1,000 women in the workforce. 19. [–/5 Points] DETAILS AUFQR1 3.1.027.MI.SA. This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part. Tutorial Exercise According to the Bureau of Labor Statistics, in a recent year, there were 16,583,000 women aged 25 to 34 who were employed and 5,904,000 who were unemployed but looking for work. What is the rate per 1,000 women aged 25 to 34 who were employed? Round to the nearest whole number. 20. [–/1 Points] DETAILS AUFQR1 3.1.029. Suppose there are approximately 191,000 dentists in the United States. If the U.S. population is currently 325,377,000, what is the rate of dentist per 100,000 population in the United States? Round to the nearest whole number. 59 dentists per 100,000 people 21. [–/1 Points] DETAILS AUFQR1 3.1.031. A bank charges a monthly payment of $5.05 per $1,000 borrowed for a home loan. What is the monthly payment (in dollars) for a home loan of $317,900? (Round your answer to the nearest cent.) $ 1,605.40 22. [–/1 Points] DETAILS AUFQR1 3.1.032. The table below gives the exchange rate per U.S. dollar for selected currencies. Exchange Rates per U.S. Dollar Mexican peso 18.0774 Australian dollar 1.31545 Israeli shekel 3.54239 Swedish krona 8.42484 How many Swedish krona are equivalent to $8,000? (Round your answer to two decimal places.) 67,398.72 Swedish krona 23. [–/1 Points] DETAILS AUFQR1 3.1.034.MI. Use the table below to answer the following question. Exchange Rates per U.S. Dollar Mexican peso 18.0774 Australian dollar 1.31545 Israeli shekel 3.54239 Swedish krona 8.42484 If an Australian contractor ordered $160,000 U.S. dollars worth of steel from an American company, what is the cost of the steel in Australian dollars? 210,472 Australian dollars Solution or Explanation Using ratios: 1.31545 x Australian dollars = $1 $160,000 x = 210,472 210,472 Australian dollars 24. [–/3 Points] DETAILS AUFQR1 3.1.034.MI.SA. This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part. Tutorial Exercise Use the table below to answer the following question. Exchange Rates per U.S. Dollar Mexican peso 18.0774 Australian dollar 1.31545 Israeli shekel 3.54239 Swedish krona 8.42484 If an Australian contractor ordered $620,000 U.S. dollars worth of steel from an American company, what is the cost of the steel in Australian dollars? 25. [–/1 Points] DETAILS AUFQR1 3.1.035. The table below gives the exchange rate per U.S. dollar for selected currencies. Exchange Rates per U.S. Dollar Mexican peso 18.0774 Australian dollar 1.31545 Israeli shekel 3.54239 Swedish krona 8.42484 If the United States imports computer chips from Israel that have a value of $28.5 million shekels, what is the value (in $) of the computer chips in U.S. dollars? (Round your answer to the nearest dollar.) $ 8,045,416 26. [–/1 Points] DETAILS AUFQR1 3.1.036. Use the table below to answer the following question. Exchange Rates per U.S. Dollar Mexican peso 18.0774 Australian dollar 1.31545 Israeli shekel 3.54239 Swedish krona 8.42484 What is the value of 1 Mexican peso in Australian dollars? (Suggestion: Use the fact that 1 U.S. dollar is equivalent to 18.0774 Mexican pesos and 1 U.S. dollar is equivalent to 1.31545 Australian dollars. Round your answer to three decimal places.) 1 Mexican peso is equivalent to 0.073 Australian dollars. 27. [–/1 Points] DETAILS AUFQR1 3.1.P.001. A guideline recommended by some financial advisors is that the ratio of the monthly cost for housing to monthly income should be less than 3 to 10. Does a veterinary technician who earns $2,000 per month and pays $500 per month for rent meet the recommended guideline? (See Example 1 in this section.) Yes, the technician meets the guideline. No, the technician does not meet the guideline. 28. [–/1 Points] DETAILS AUFQR1 3.1.P.002. In a recent year, a university had an enrollment of 14,373 male and 18,524 female undergraduate students. The total number of full-time instructional faculty was 1,859. Find the ratio of students to full-time instructional faculty as a unit ratio. Round to the nearest whole number. (See Example 2 in this section.) 18 students per faculty member 29. [–/1 Points] DETAILS AUFQR1 3.1.P.003. The ratio of the total number of draft-eligible NCAA football players to the number of NCAA football players that get drafted into the NFL is approximately 65 to 1. In a year when 265 draft-eligible football players were drafted into the NFL, how many draft-eligible NFL football players were there that year? (See Example 3 in this section.) 17,225 players 30. [–/1 Points] DETAILS AUFQR1 3.1.P.004. You pay $7.05 for 1.5 lb of hamburger. What is the cost per pound? (See Example 4 in this section.) $ 4.70 per lb 31. [–/1 Points] DETAILS AUFQR1 3.1.P.005. Which is the more economical purchase—32 oz of detergent for $5.59 or 40 oz of detergent for $9.59? (See Example 5 in this section.) Purchasing 32 oz of detergent for $5.59 is more economical. Purchasing 40 oz of detergent for $9.59 is more economical. 32. [–/1 Points] DETAILS AUFQR1 3.1.P.006. A city with a population of 453,100 people has 659 physicians. Find the rate of physicians per 100,000 people for this city. (See Example 6 in this section. Round your answer to the nearest whole number.) 145 physicians per 100,000 people 33. [–/1 Points] DETAILS AUFQR1 3.1.P.007. According to the Centers for Disease Control and Prevention, the birth rate in one year for women between ages 15 and 44 was 63.5 per 1,000 women in that age group. If there are 54,965,000 women between the ages of 15 and 44, how many births occurred in that year? (See Example 7 in this section. Round your answer to the nearest whole number.) 3,490,278 births 34. [–/1 Points] DETAILS AUFQR1 3.1.P.008. A bank offers a 4-year car loan for which the monthly payment is $24.501 per $1,000 borrowed. Find the monthly payment (in dollars) for a car loan of $27,254. (See Example 8 in this section. Round your answer to the nearest cent.) $ 667.75 35. [–/2 Points] DETAILS AUFQR1 3.1.P.009. Assume the exchange rate between the Chinese yuan renminbi and U.S. dollars is 6.80344 yuan per $1. (See Example 9 in this section.) (a) If a Chinese tourist purchased a vacation package for $4,900, what is the cost of the vacation in yuan? Round to the nearest yuan. 33,337 yuan (b) A U.S. business executive entertained clients at a restaurant in China at a cost of 1,859 yuan. What is the cost of the restaurant bill in U.S. dollars? Round to the nearest cent. $ 273.24 36. [–/1 Points] DETAILS AUFQR1 3.2.001. Convert between the two measurements. 6 ft = _____ in. 72 in. 37. [–/2 Points] DETAILS AUFQR1 3.2.001.EP. What conversion rate is used to convert feet to inches? 1 ft 12 in 12 in 1 ft 12 ft 1 in 1 in 12 ft Convert between the two measurements. 6 ft = _____ in. 72 in. 38. [–/1 Points] DETAILS AUFQR1 3.2.002. Convert between the two measurements. 7,920 ft = _____ mi 1.5 mi 39. [–/2 Points] DETAILS AUFQR1 3.2.002.EP. What conversion rate is used to convert feet to miles? 1 mi 5,280 ft 5,280 ft 1 mi 1 ft 5,280 mi 5,280 mi 1 ft Convert between the two measurements. 7,920 ft = _____ mi 1.5 mi 40. [–/1 Points] DETAILS AUFQR1 3.2.004. Convert between the two measurements. 3 mi = _____ yd 4 1,320 yd 41. [–/1 Points] DETAILS AUFQR1 3.2.006. Convert between the two measurements. 9,000 lb = _____ tons 4.5 tons 42. [–/2 Points] DETAILS AUFQR1 3.2.006.EP. What conversion rate is used to convert pounds to tons? 2,000 lb 1 ton 1 ton 2,000 lb 2,000 ton 1 lb 1 lb 2,000 ton Convert between the two measurements. 9,000 lb = _____ tons 4.5 tons 43. [–/1 Points] DETAILS AUFQR1 3.2.008. Convert between the two measurements. 4 ton = _____ lb 5 1,600 lb 44. [–/1 Points] DETAILS AUFQR1 3.2.012. Convert between the two measurements. 1 4 qt = _____ c 2 18 c 45. [–/1 Points] DETAILS AUFQR1 3.2.013. Convert between the two measurements. 67 cm = _____ mm 670 mm 46. [–/2 Points] DETAILS AUFQR1 3.2.013.EP. What conversion rate is used to convert centimeters to millimeters? 1,000 mm 1 cm 1 cm 10 mm 1 cm 100 mm 100 mm 1 cm 10 mm 1 cm Convert between the two measurements. 59 cm = _____ mm 590 mm 47. [–/1 Points] DETAILS AUFQR1 3.2.016. Convert between the two measurements. 480 cm = _____ m 4.8 m 48. [–/1 Points] DETAILS AUFQR1 3.2.021. Convert between the two measurements. 9.5 ml = _____ L 0.0095 L 49. [–/1 Points] DETAILS AUFQR1 3.2.022. Convert between the two measurements. 0.033 L = _____ ml 33 ml 50. [–/1 Points] DETAILS AUFQR1 3.2.023. Convert between the two measurements. 0.425 L = _____ cm 3 3 425 cm 51. [–/1 Points] DETAILS AUFQR1 3.2.025. Solve. Round to the nearest hundredth if necessary. Find the weight in kilograms of a 195-pound person. 88.64 kg 52. [–/1 Points] DETAILS AUFQR1 3.2.026. Solve. Round to the nearest hundredth if necessary. Find the number of liters in 14.9 gal of gasoline. 56.47 53. [–/1 Points] DETAILS AUFQR1 3.2.027.MI. Solve. Round to the nearest hundredth if necessary. Express 30 mph in kilometers per hour. 48.3 km/h Solution or Explanation 30 mi 30 mi 1.61 km ≈ ✕ h h 1 mi 30 ✕ 1.61 km = h = 48.3 km/h 30 mi/h ≈ 48.3 km/h 54. [–/6 Points] DETAILS AUFQR1 3.2.027.MI.SA. This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part. Tutorial Exercise Solve. Round to the nearest hundredth if necessary. Express 90 mph in kilometers per hour. 55. [–/1 Points] DETAILS AUFQR1 3.2.030.MI. Solve. Round to the nearest hundredth if necessary. Find the weight, in pounds, of a 69-kilogram person. 151.8 lb Solution or Explanation 2.2 lb 69 kg ≈ 69 kg ✕ 1 kg = 69 ✕ 2.2 lb = 151.8 lb 69 kg ≈ 151.8 lb 56. [–/5 Points] DETAILS AUFQR1 3.2.030.MI.SA. This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part. Tutorial Exercise Solve. Round to the nearest hundredth if necessary. Find the weight, in pounds, of a 58-kilogram person. 57. [–/1 Points] DETAILS AUFQR1 3.2.031. Solve. Round to the nearest hundredth if necessary. Find the width, in inches, of 65 mm film. 2.56 in 58. [–/1 Points] DETAILS AUFQR1 3.2.033. Solve. Round to the nearest hundredth if necessary. A 6 kg ham costs $10/kg. Find the cost per pound (in dollars per pound). 4.55 dollars per pound 59. [–/2 Points] DETAILS AUFQR1 3.2.I.001. As our scientific and technical knowledge has increased, so has our need for ever-smaller and ever-larger units of measure. The prefixes used to denote some of these units of measure are listed in the following table. Prefixes for large units Prefixes for smaller units n 10 10 n Name Symbol Name Symbol yotta Y 10 24 yocto y 10 −24 zetta Z 10 21 zepto z 10 −21 exa E 10 18 atto a 10 −18 peta P 10 15 femto f 10 −15 tera T 10 12 pico p 10 −12 giga G 10 9 nano n 10 −9 mega M 10 6 micro µ 10 −6 These new units of measure are quickly working their way into our everyday lives. For example, it is quite easy to purchase a 1-terabyte hard drive. One terabyte (TB) is equal to 10 12 bytes. As another example, many computers can do multiple operations in 1 nanosecond (ns). One nanosecond is equal to 10 −9 s. Convert between the two units. (Enter your answer using scientific notation.) 2.3 T = _____ Y -12 2.3 ✕ 10 Y 60. [–/2 Points] DETAILS AUFQR1 3.2.I.002. As our scientific and technical knowledge has increased, so has our need for ever-smaller and ever-larger units of measure. The prefixes used to denote some of these units of measure are listed in the following table. Prefixes for large units Prefixes for smaller units 10 n 10 n Name Symbol Name Symbol yotta Y 10 24 yocto y 10 −24 zetta Z 10 21 zepto z 10 −21 exa E 10 18 atto a 10 −18 peta P 10 15 femto f 10 −15 tera T 10 12 pico p 10 −12 giga G 10 9 nano n 10 −9 mega M 10 6 micro µ 10 −6 These new units of measure are quickly working their way into our everyday lives. For example, it is quite easy to purchase a 1-terabyte hard drive. One terabyte (TB) is equal to 10 12 bytes. As another example, many computers can do multiple operations in 1 nanosecond (ns). One nanosecond is equal to 10 −9 s. Convert between the two units. (Enter your answer using scientific notation.) 6.83 n = _____ p 3 6.83 ✕ 10 p 61. [–/2 Points] DETAILS AUFQR1 3.2.I.008. As our scientific and technical knowledge has increased, so has our need for ever-smaller and ever-larger units of measure. The prefixes used to denote some of these units of measure are listed in the following table. Prefixes for large units Prefixes for smaller units 10 n 10 n Name Symbol Name Symbol yotta Y 10 24 yocto y 10 −24 zetta Z 10 21 zepto z 10 −21 exa E 10 18 atto a 10 −18 peta P 10 15 femto f 10 −15 tera T 10 12 pico p 10 −12 giga G 10 9 nano n 10 −9 mega M 10 6 micro µ 10 −6 These new units of measure are quickly working their way into our everyday lives. For example, it is quite easy to purchase a 1-terabyte hard drive. One terabyte (TB) is equal to 10 12 bytes. As another example, many computers can do multiple operations in 1 nanosecond (ns). One nanosecond is equal to 10 −9 s. A light year is approximately 6,000,000,000,000 mi. Describe a light year using Ym (yottameters). (Enter your answer using scientific notation. Round the decimal value to two decimal places) -9 9.66 ✕ 10 Ym 62. [–/1 Points] DETAILS AUFQR1 3.2.I.009. As our scientific and technical knowledge has increased, so has our need for ever-smaller and ever-larger units of measure. The prefixes used to denote some of these units of measure are listed in the following table. Prefixes for large units Prefixes for smaller units 10 n 10 n Name Symbol Name Symbol yotta Y 10 24 yocto y 10 −24 zetta Z 10 21 zepto z 10 −21 exa E 10 18 atto a 10 −18 peta P 10 15 femto f 10 −15 tera T 10 12 pico p 10 −12 giga G 10 9 nano n 10 −9 mega M 10 6 micro µ 10 −6 These new units of measure are quickly working their way into our everyday lives. For example, it is quite easy to purchase a 1-terabyte hard drive. One terabyte (TB) is equal to 10 12 bytes. As another example, many computers can do multiple operations in 1 nanosecond (ns). One nanosecond is equal to 10 −9 s. In the 1980s, it became possible to measure optical events in nanoseconds and picoseconds. Express 1 ps as a decimal in seconds. 0.000000000001 s 63. [–/1 Points] DETAILS AUFQR1 3.2.P.001. Convert 24 ft to yards. (See Example 1 in this section.) 8 yd 64. [–/1 Points] DETAILS AUFQR1 3.2.P.002. Convert 5 lb to ounces. (See Example 2 in this section.) 80 oz 65. [–/1 Points] DETAILS AUFQR1 3.2.P.003. Convert 22 pt to gallons. (See Example 3 in this section.) 2.75 gal 66. [–/1 Points] DETAILS AUFQR1 3.2.P.004. Convert 0.48 m to millimeters. (See Example 4 in this section.) 480 mm 67. [–/1 Points] DETAILS AUFQR1 3.2.P.005. Convert 69.7 mg to grams. (See Example 5 in this section.) 0.0697 g 68. [–/1 Points] DETAILS AUFQR1 3.2.P.006. Convert 5 kl 762 L to liters. (See Example 6 in this section.) 5,762 L 69. [–/1 Points] DETAILS AUFQR1 3.2.P.007. The price of milk is $3.19/gal. Find the cost per liter (in dollars per liter). Round to the nearest cent. (See Example 7 in this section.) 0.84 dollars per L 70. [–/1 Points] DETAILS AUFQR1 3.2.P.008. Convert 85 cm to inches. Round to the nearest hundredth. (See Example 8 in this section.) 33.46 in. 71. [–/1 Points] DETAILS AUFQR1 3.2.P.009. Express 15 mph in kilometers per hour. Round to the nearest hundredth. (See Example 9 in this section.) 24.15 km/h