Page 218 - Basic College Mathematics with Early Integers

S E C T I O N 3.2 I FACTORS AND SIMPLEST FORM 195

Use this circle graph to answer Exercises 99 through 102.

Areas Maintained by the National Park Service 99. What fraction of National Park Service areas are
National Memorials?
4 33
Parks Historic Parks
25 100
100. What fraction of National Park Service areas are
Parkways/
1 National Parks?
Scenic Trails
50
Recreation
1 101. Why is the National Battlefields sector smaller than
Memorials 2 Areas 20
25
the National Monuments sector?
1
Rivers
25
Lakes/ 21 102. Why is the National Lakes/National Seashores
1 Monuments
Seashores 100 sector the same size as the National Rivers sector?
25
Battlefields 7
100
Source: National Park Service
Use the following numbers for Exercises 103 through 106.
8691 786 1235 2235 85 105 22 222 900 1470
103. List the numbers divisible by both 2 and 3. 104. List the numbers that are divisible by both 3 and 5.

105. The answers to Exercise 103 are also divisible by 106. The answers to Exercise 104 are also divisible by
what number? Tell why. what number? Tell why.