Basic Mathematics for College Students

Divide.See Example 8.

51. 
    
    
    
    52. 
        
    
    
    
    


52. 
    
    
    
    54. 
        
    
    
    
    


53. 
    
    
    
    56. 
        
    
    
    
    


54. 
    
    
    
    58. 
        
    
    
    
    

Evaluate each expression.See Example 9.

59. 
    
    
    
    60. 
        
    
    
    
    


60. 
    
    
    
    62. 
        
    
    
    
    

Evaluate each formula.See Example 10.

63. for and


64. for and


65. for and


66. for and (Round to the
    nearest hundredth.)

TRY IT YOURSELF

Perform the indicated operations. Round the result to the

specified decimal place, when indicated.

67. 
    
    
    
    68. 
        
    
    
    
    


68. 
    
    
    
    70. 
        
    
    
    
    


69. 
    
    
    
    72. 
        
    
    
    
    


70. 
    
    
    
    74. 
        
    
    
    
    


71. 
    
    
    
    76. 
        
    
    
    
    


72. Divide 1.2202 by.


73. Divide by.


74. (nearest tenth)


75. (nearest tenth)


76. 
    
    
    
    82. 
        
    
    
    
    


77. 
    
    
    
    84. 
        
    
    
    
    


78. 
    
    
    
    86. 
        
    
    
    
    


79. (nearest hundredth)


80. (nearest hundredth)


81. 1,00034.8 90. 10,000678.9

13.4410.6

12.2430.9

0.0092

0.023

0.0102

0.017

7.8915.00001 23.0250.0001

 39 (4)  26 (8)

21.213.8

5.7142.4

0.4531 0.001

0.01

(1.3)^2 9.2

2(0.2)0.5

3(0.2)2(3.3)

30(0.4)^2

(^9) 2.889 (^6) 3.378
(^8) 0.036 (^4) 0.073

22.32

100

75.04

10

4.511.97 4.114.637

p C14.4513 d4.6

C

d

r d219.375 t3.75

d

t

h A9.62 b3.7

2 A

b

t d211.75 r60.5

d

r

1.6745(0.222)

(0.1)^2

5.4093(1.8)

(0.3)^2

2(1.242)0.8932

0.40.8

2(0.614)2.3854

0.20.9

0.003(100) 0.008(100)

48.8933

0.001

20.3257

0.001

91.304(22.6) 66.126(32.1)

110.33612.8 121.58414.9

91. (nearest hundredth)


92. (nearest hundredth)


93. Divide 0.25 by 1.6 94. Divide 1.2 by 0.64

APPLICATIONS

95. BUTCHER SHOPS A meat slicer trims 0.05-inch-
    thick pieces from a sausage. If the sausage is 14 inches
    long, how many slices are there in one sausage?


96. ELECTRONICS The volume control
    on a computer is shown to the right. If
    the distance between the Low and High
    settings is 21 cm, how far apart are the
    equally spaced volume settings?


97. COMPUTERS A computer can do an
    arithmetic calculation in 0.00003 second.
    How many of these calculations could it
    do in 60 seconds?


98. THE LOTTERY In December of
    2008, fifteen city employees of Piqua,
    Ohio, who had played the Mega Millions Lottery as
    a group, won the jackpot. They were awarded a total
    of $94.5 million. If the money was split equally, how
    much did each person receive?
    (Source: pal-item.com)


99. SPRAY BOTTLES Each squeeze of the trigger of a
    spray bottle emits 0.017 ounce of liquid. How many
    squeezes are there in an 8.5-ounce bottle?


100. CAR LOANS See the loan statement below. How
     many more monthly payments must be made to pay
     off the loan?


101. HIKING Refer to the illustration below to
     determine how long it will take the person shown to
     complete the hike. Then determine at what time of
     the day she will complete the hike.

Start 27.5-mile hike Finish

The hiker walks

2.5 miles

each hour.

Departure

A.M. Arrival

(^1212)
3
54
(^76)
8
9
1011
(^1212)
3
54
(^76)
8
9
1011
?
American Finance Company June
Monthly
payment:
$42.10 Loan balance: $631.50
Paid to date: $547.30

(0.5)^2 (0.3)^2

0.0050.1

40.7(38.3)

0.40.61

370 Chapter 4 Decimals

Low

High

VOLUME

CONTROL