Section 1.4 Rounding and Estimating 33 Concept 2: Estimation For Exercises 33–36, estimate the sum or difference by first rounding each number to the nearest ten. (See Examples 5 and 6.) 33. 34. 35. 36. 851 399 639 422 33 78 41 57 82 21 For Exercises 37–40, estimate the sum or difference by first rounding each number to the nearest hundred. (See Examples 5 and 6.) 37. 38. 39. 40. 347 563 892 129 Concept 3: Using Estimation in Applications For Exercises 41 and 42, refer to the table. 9771 4544 3412 1252 Brand Manufacturer Sales ($) M&Ms Mars 97,404,576 Hershey’s Milk Chocolate Hershey Chocolate 81,296,784 Reese’s Peanut Butter Cups Hershey Chocolate 54,391,268 Snickers Mars 53,695,428 KitKat Hershey Chocolate 38,168,580 41. Round the individual sales to the nearest 42. Round the sales to the nearest million to million to estimate the total sales brought in estimate the total sales brought in by the by the Mars company. (See Example 7.) Hershey Chocolate Company. 43. Neil Diamond earned $71,339,710 in U.S. tours in one year while Paul McCartney earned $59,684,076. Round each value to the nearest million dollars to estimate how much more Neil Diamond earned. (See Example 8.) 44. In a recent year, the average annual salary for a public school teacher in Iowa was $43,130. The average salary for a public school teacher in California was $63,640. Round each value to the nearest thousand to estimate how much more a school teacher in California earned compared to one from Iowa. For Exercises 45–48, use the given table. 45. Round each revenue to the nearest hundredthousand to estimate the total revenue for the years 2000 through 2002. 46. Round the revenue to the nearest hundredthousand to estimate the total revenue for the years 2003 through 2005. 47. a. Determine the year with the greatest revenue. Round this revenue to the nearest hundred-thousand. Beach Parking Revenue for Daytona Beach, Florida Year Revenue 2000 $3,316,897 2001 3,272,028 2002 3,360,289 2003 3,470,295 2004 3,173,050 2005 1,970,380 Source: Daytona Beach News Journal Table for Exercises 45–48 b. Determine the year with the least revenue. Round this revenue to the nearest hundred-thousand. 48. Estimate the difference between the year with the greatest revenue and the year with the least revenue.
miller_prealgebra_2e_ch1_3
To see the actual publication please follow the link above