Basic Mathematics for College Students

97. RECORD HOLDERS The late Florence Griffith-
    Joyner of the United States holds the women’s world
    record in the 100-meter sprint: 10.49 seconds. Libby
    Trickett of Australia holds the women’s world
    record in the 100-meter freestyle swim: 52.88 seconds.
    How much faster did Griffith-Joyner run the 100
    meters than Trickett swam it? (Source:The World
    Almanac and Book of Facts,2009)


98. WEATHER REPORTS Barometric pressure
    readings are recorded on the weather map below. In a
    low-pressure area (L on the map), the weather is
    often stormy. The weather is usually fair in a high-
    pressure area (H). What is the difference in readings
    between the areas of highest and lowest pressure?

b. “The women’s figure skating title was decided by

only thirty-three hundredths of a point.” If the

winner’s point total was 102.71, what was the

second-place finisher’s total? (Hint:The highest

score wins in a figure skating contest.)

342 Chapter 4 Decimals

28.9

29.4 30.0

30.3 29.7

30.7

29.4

L

H

99. BANKING A businesswoman deposited several
    checks in her company’s bank account, as shown on
    the deposit slip below. Find the Subtotalline on the
    slip by adding the amounts of the checks and total
    from the reverse side. If the woman wanted to get
    $25 in cash back from the teller, what should she
    write as the Total depositon the slip?


100. SPORTS PAGES Decimals are often used in the
     sports pages of newspapers. Two examples are given
     below.
     a. “German bobsledders set a world record today
     with a final run of 53.03 seconds, finishing ahead
     of the Italian team by only fourteen thousandths
     of a second.” What was the time for the Italian
     bobsled team?

Deposit slip

Cash

Checks (properly endorsed)

Total from reverse side

Subtotal

Less cash

Total deposit

116 10

47 93

359 16

25 00

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Home Health Aide

101. Suppose certain portions
     of a patient’s morning
     (A.M.) temperature chart
     were not filled in. Use
     the given information to
     complete the chart below.
     (Hint:98.6°F is considered
     normal.)


102. QUALITY CONTROL An electronics company
     has strict specifications for the silicon chips it uses
     in its computers. The company only installs chips
     that are within 0.05 centimeter of the indicated
     thickness. The table below gives that specifications
     for two types of chips. Fill in the blanks to complete
     the chart.

Tetra Images/Getty Images

Patient’s A.M. Amount

Day of week temperature above normal

Monday 99.7°

Tuesday 2.5°

Wednesday 98.6°

Thursday 100.0°

Friday 0.9°

Thickness

Acceptable range

Chip type specification Low High

A 0.78 cm

B 0.643 cm

103. FLIGHT PATHS Find the added distance a plane
     must travel to avoid flying through the storm.

Storm

20.39 mi

14.57 mi

9.65 mi

16.18 mi