Section 1.2 Addition of Whole Numbers and Perimeter 13 Solving an Application Problem Example 8 Carlita works as a waitress at El Pinto restaurant in Albuquerque, New Mexico. Her tips for the last five nights were $30, $18, $66, $102, and $45. Find the total amount she made in tips. Solution: To find the total, we add. Carlita made $261 in tips. $ 1 3 2 0 18 66 102 45 $261 Tables and graphs are often used to summarize information in an organized manner. Examples 9 and 10 demonstrate the interpretation of these tools. Solving an Application Problem Involving a Table Example 9 The following table gives the number of hits for five popular websites for a recent month. Find the total number of visitors. Solution: Website Number of Visitors AOL Time Warner Network 97,995 MSN-Microsoft sites 89,819 Yahoo! sites 83,433 Google sites 37,460 Terra Lycos 36,173 3 9 3 7 2 2 9 2 ,9 5 89,819 83,433 37,460 36,173 344,880 There were 344,880 combined visitors to these websites. Skill Practice 11. Talita received test scores of 92, 100, 84, and 96 on her first four math tests. She also earned 8 points of extra credit. How many total points did she earn? Skill Practice 12. The table gives the number of gold, silver, and bronze medals won in the 2010 Winter Olympics for selected countries. Find the total number of medals won by Canada. Gold Silver Bronze Germany 10 13 7 USA 9 15 13 Canada 14 7 5 Answers 11. 380 points 12. 26 medals
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