Page 106 - Basic College Mathematics with Early Integers

S E C T ION 1. 8 I AN INTRODUCTION TO PROBLEM SOLVING 83

35. An instructor at the University of New Orleans 36. A loan of $6240 is to be paid in 48 equal payments.
receives a paycheck every four weeks. Find how How much is each payment?
many paychecks he receives in a year. (A year has
52 weeks.)

Objective Solve. See Example 5.

37. Find the total cost of 3 sweaters at $38 each and 38. Find the total cost of 10 computers at $2100 each and
5 shirts at $25 each. 7 boxes of diskettes at $12 each.

39. A college student has $950 in an account. She spends 40. The temperature outside was 57°F (degrees
$205 from the account on books and then deposits Fahrenheit). During the next few hours, it decreased
$300 in the account. How much money is now in the by 18 degrees and then increased by 23 degrees. Find
account? the new temperature.

The table shows the menu from a concession stand at the county fair. Use this menu to answer Exercises 41
and 42.

41. A hungry college student is debating between the following Corky’s Concession
two orders: Stand Menu
a. a hamburger, an order of onion rings, a candy bar, and a Item Price
soda.
Hot dog $3
b. a hot dog, an apple, an order of french fries, and a soda.
Hamburger $4
Which order will be cheaper? By how much?
Soda $1
Onion rings $3
42. A family of four is debating between the following two orders: French fries $2
a. 6 hot dogs, 4 orders of onion rings, and 4 sodas. Apple $1
b. 4 hamburgers, 4 orders of french fries, 2 apples, and 4 sodas.
Candy bar $2
Will the family save any money by ordering (b) instead of (a)?
If so, how much?

Objectives Mixed Practice Use the bar graph to answer Exercises 43 through 50. (Source: Miniwatts
Marketing Group)

World Internet Usage in 2008 43. Which region of the world listed had the
600 579 greatest number of Internet users in 2008?
550
500 385 44. Which region of the world listed had the
Number of Internet Users (in millions) 400 248 45. How many more Internet users (in millions)
fewest number of Internet users in 2008?
450
350
did the world region with the most Internet
300
users have than the world region with the
250
fewest Internet users?
200
150
100 139 46. How many more Internet users did Africa
51 42
50 20 have than the Middle East in 2008?
0
Africa Asia Europe Middle North Latin Oceania/ 47. How many more Internet users did North
East America America/ Australia
Caribbean America have than Latin America/
Caribbean?
Region of the World
48. Which region of the world had more
Internet users, Europe or North America?
How many more Internet users did it have?