Beginning Algebra, 11th Edition

70.A football player gained yyards on a punt return. On the next return, he gained 6 yd. What

expression represents the number of yards he gained altogether?

71.A baseball player got 65 hits one season. He got hof the hits in one game. What expres-

sion represents the number of hits he got in the rest of the games?

72.A hockey player scored 42 goals in one season. He scored ngoals in one game. What ex-

pression represents the number of goals he scored in the rest of the games?

73.Monica is xyears old. What expression represents her age 15 yr from now? 5 yr ago?

74.Chandler is yyears old. What expression represents his age 4 yr ago? 11 yr from now?

75.Cliff has rquarters. Express the value of the quarters in cents.

76.Claire has ydimes. Express the value of the dimes in cents.

77.A bank teller has tdollars, all in $5 bills. What expression represents the number of

$5 bills the teller has?

78.A clerk has vdollars, all in $10 bills. What expression represents the number of $10 bills

the clerk has?

79.A plane ticket costs xdollars for an adult and ydollars for a child. Find an expression that

represents the total cost for 3 adults and 2 children.

80.A concert ticket costs pdollars for an adult and qdollars for a child. Find an expression

that represents the total cost for 4 adults and 6 children.

Write each phrase as a mathematical expression using x as the variable.See Sections 1.3, 1.5,

1.6, and 1.8.

81.A number added to 6

82.A number decreased by 9

83.The difference between 5 and a number

84.The quotient of 6 and a nonzero number

85.The product of 12 and the difference between a number and 9

86.The quotient of 9 more than a number and 6 less than the number

-

-

-

PREVIEW EXERCISES

106 CHAPTER 2 Linear Equations and Inequalities in One Variable

SUMMARY EXERCISESon Solving Linear Equations

This section provides practice in solving all the types of linear equations introduced in

Sections 2.1–2.3.

Solve each equation, and check your solution.

7. 8. 9.

10. 
    
    
    
    11. 4 x+ 213 - 2 x 2 = 6 12.- 6 z=- 14
    
    
    
    

2

3

x+ 8 =

1

4

x

• x= 6

x

• 2

5 x- 9 = 31 x- 32 = 8

7 m- 5 m=- 12

4

5

• x=- 12 x=- 20

x+ 2 =- 3 2 m+ 8 = 16 12.5x=-63.75

http://www.ebook777.com

http://www.ebook777.com