Page 60 - Basic College Mathematics with Early Integers

S E C T ION 1. 4 I SUBTRACTING WHOLE NUMBERS 37

The bar graph shows the top five U.S. airports according to number of passengers arriving and departing in 2007.
Use this graph to answer Exercises 79 through 82.

Top Five Airports in U.S. 79. Which airport is the busiest?
89
90 76 80. Which airports have fewer than 70 million passengers
80
Number of Passengers Arriving and Departing (in millions) 60 60 62 50 81. How many more passengers per year does the Chicago
70
per year?
50
40
30
O’Hare International Airport have than the Denver
20
10
0 International Airport?
Hartsfield- Chicago Dallas/ Los Angeles Denver
Jackson O’Hare Ft. Worth Int’l Int’l 82. How many more passengers per year does the Hartsfield-
Atlanta Int’l Int’l Int’l Jackson Atlanta International Airport have than the
Source: Airports Council International Dallas/Ft.Worth International Airport?

Solve.

83. Two seniors, Jo Keen and Trudy Waterbury, were 84. Two students submitted advertising budgets for a
candidates for student government president.Who student government fund-raiser.
won the election if the votes were cast as follows? By
how many votes did the winner win? Student A Student B
Radio ads $600 $300
Candidate Newspaper ads $200 $400
Class Jo Trudy Posters $150 $240
Freshman 276 295 Handbills $120 $170
Sophomore 362 122
If $1200 is available for advertising, how much excess
Junior 201 312
would each budget have?
Senior 179 18

Mixed Practice (Sections 1.3 and 1.4) Add or subtract as indicated.

85. 986 86. 986 87. 76 - 67 88. 80 + 93 + 17 + 9 + 2
+ 48 - 48

89. 9000 90. 10,000 91. 10,962 92. 12,468
- 482 - 1786 4851 3211
+ 7063 + 1988

Concept Extensions

For each exercise, identify which number is the minuend and which number is the subtrahend. See the Concept Check
in this section.
93. 48 94. 2863
- 1 - 1904

95. Subtract 7 from 70. 96. Find 86 decreased by 25.