174 Chapter 3 Solving Equations 63. Monique and Michael drove from Ormond Beach, Florida, to Knoxville, Tennessee. Michael drove three times as far as Monique drove. If the total distance is 480 mi, how far did each person drive? 64. Joel ate twice as much pizza as Angela. Together, they finished off a 12-slice pizza. How many pieces did each person have? 65. As of a recent year,Tom Cruise starred in 5 fewer films than Tom Hanks. If together they starred in 65 films, how many films did Tom Hanks and Tom Cruise star in individually? 66. Raul signed up for his classes for the spring semester. His load was 4 credit-hours less in the spring than in the fall. If he took a total of 28 hours in the two semesters combined, how many hours did he take in the fall? How many hours did he take in the spring? 58. Three times the difference of 4 and a number is 9. Find the number. 59. A rack of discount CDs are on sale for $9 each. If Mario buys n CDs, write an expression for the total cost. 60. Henri bought four sandwiches for x dollars each. Write an expression that represents the total cost. 61. It took Winston 2 hr longer to finish his psychology paper than it did for Gus to finish. If Gus finished in x hours, write an expression for the amount of time it took Winston. 62. Gerard is 6 in. taller than his younger brother Dwayne. If Dwayne is h inches tall, write an expression for Gerard’s height. 3. 3 1u v2 13 u2 v 4. 41b 22 4b 8 5. g162 6g For Exercises 6–11, simplify the expressions. 6. 5x 3x x 7. 2a 3b 8a 4b a 8. 41a 92 12 9. 316b2 5b 8 Chapter 3 Test For Exercises 1–5, state the property demonstrated. Choose from: a. commutative property of addition b. commutative property of multiplication c. associative property of addition d. associative property of multiplication e. distributive property of multiplication over addition. 1. 519x2 15 92x 2. 5x 9 9 15x2
miller_prealgebra_2e_ch1_3
To see the actual publication please follow the link above