Page 95 - Basic College Mathematics with Early Integers

72 C HAPTE R 1 I THE WHOLE NUMBERS

Mixed Practice (Sections 1.3, 1.4, 1.6, 1.7) Perform each indicated operation.Watch the operation symbol.

97. 82 + 463 + 29 + 8704 98. 23 + 407 + 92 + 7011

99. 546 100. 712 101. 722 102. 712
* 28 * 54 - 43 - 54

45 0
103. 104. 105. 228 , 24 106. 304 , 31
0 23

Concept Extensions

Match each word phrase to the correct translation. (Not all letter choices will be used.) See the Concept Check in this section.

107. The quotient of 40 and 8 108. The quotient of 200 and 20 a. 20 , 200 b. 200 , 20
c. 40 , 8 d. 8 , 40
109. 200 divided by 20 110. 40 divided by 8

The following table shows the top five countries with the most Nobel Prize winners through 2008. Use this table to
answer Exercises 111 and 112. (Source: Nobel Prize Committee)
111. Find the
Countries with the Most Nobel Prize Winners, 1901–2008
average
number of Physiology
Nobel Prize Country Physics Chemistry Literature and Medicine Peace Economics Total
winners for
the countries United States 88 59 11 96 22 44 320
shown.
United Kingdom 21 27 11 31 13 7 110
112. Find the
average
Germany 25 28 8 16 4 1 82
number of
Nobel Prize
France 13 8 14 11 10 2 58
winners per
category for
Sweden 4 4 8 7 5 2 30
Sweden.

In Example 12 in this section, we found that the average of 75, 96, 81, and 88 is 85. Use this information to answer
Exercises 113 and 114.

113. If the number 75 is removed from the list of 114. If the number 96 is removed from the list of
numbers, does the average increase or decrease? numbers, does the average increase or decrease?
Explain why. Explain why.

115. Without computing it, tell whether the average 116. Without computing it, tell whether the average
of 126, 135, 198, 113 is 86. Explain why it is of 38, 27, 58, and 43 is 17. Explain why it is possible
possible or why it is not. or why it is not.
Copyright 2012 Pearson Education, Inc.
117. If the area of a rectangle is 60 square feet and its 118. If the area of a rectangle is 84 square inches and
width is 5 feet, what is its length? its length is 21 inches, what is its width?

119. Write down any two numbers whose quotient is 25. 120. Write down any two numbers whose quotient is 1.

121. Find 26 , 5 using the process of repeated 122. Find 86 , 10 using the process of repeated
subtraction. subtraction.