Section 1.8 Problem-Solving Strategies 77 23. A graphing calculator screen consists of an array of rectangular dots called pixels. If the screen has 96 rows of pixels and 126 pixels in each row, how many pixels are in the whole screen? (See Example 3.) 24. The floor of a rectangular room has 62 rows of tile with 38 tiles in each row. How many total tiles are there? 25. At one time, San Antonio College had 3000 students who registered for Prealgebra. If the average class size is 25 students, how many Prealgebra classes will the college have to offer? 26. Eight people are to share equally in an inheritance of $84,480. How much money will each person receive? 27. The Honda Insight gets 45 miles per gallon (mpg) in stop-and-go traffic. How many gallons will it use in 405 mi of stop-and-go driving? (See Example 4.) 28. A couple traveled at an average speed of 52 mph for a cross-country trip. If the couple drove 1352 mi, how many hours was the trip? 29. Jeannette has two children who each attended college in Boston. Her son Ricardo attended Bunker Hill Community College where the yearly tuition and fees came to $3024. Her daughter Ricki attended M.I.T. where the yearly tuition and fees totaled $39,212. If Jeannette paid the full amount for both children to go to school, what was her total expense for tuition and fees for 1 year? 30. Clyde and Mason each leave a rest area on the Florida Turnpike. Clyde travels north and Mason travels south. After 2 hr, Clyde has gone 138 mi and Mason, who ran into heavy traffic, traveled only 96 mi. How far apart are they? 21. Find the total amount of oil (in barrels per day) consumed by China, Japan, Russia, and Canada. (See Example 2.) 22. Find the total population of China, Japan, Russia, and Canada. 31. The Toyota Prius gets 55 mpg on the highway. How many miles can it go on 20 gal? 32. A 3 credit-hour class at a certain college meets 3 hr per week. If a semester is 16 weeks long, how many hours will the class meet during the semester? 33. A movie theater has 70 rows and 45 seats in a row.What is the maximum seating capacity? 34. A square checkerboard has 8 boxes per row and 8 rows.What is the total number of boxes?
miller_basic_college_math_3e_ch1_3
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