Page 403 - Basic College Mathematics with Early Integers
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380                            C HAPTE R 5 I RATIO, PROPORTION, AND MEASUREMENT

        The school’s computer lab goes through 5 reams of printer paper every 3 weeks.

          23. Find out how long a case of printer paper is likely  24. How many cases of printer paper should be
              to last (a case of paper holds 8 reams of paper).     purchased to last the entire semester of 15 weeks?
              Round to the nearest week.                            Round up to the next case.




                                                 1
        A recipe for pancakes calls for 2 cups flour and 1  cups milk to make a serving for four people.
                                                 2

        25. Ming has plenty of flour, but only 4 cups milk. How  26. The swim team has a weekly breakfast after early
           many servings can he make?                            practice. How much flour will it take to make
                                                                 pancakes for 18 swimmers?




        27. In the Seattle Space Needle, the elevators whisk you  28. A 16-oz grande Tazo Black Iced Tea at Starbucks has
           to the revolving restaurant at a speed of 800 feet in  80 calories. How many calories are there in a 24-oz
           60 seconds. If the revolving restaurant is 500 feet up,  venti Tazo Black Iced Tea? (Source: Starbucks
           how long will it take you to reach the restaurant by  Coffee Company)
           elevator? (Source: Seattle Space Needle)




        29. Mosquitos are annoying insects.To eliminate       30. Another type of mosquito control is liquid, where
           mosquito larvae, a certain granular substance can     3 oz of pesticide is mixed with 100 oz of water.This
           be applied to standing water in a ratio of 1 tsp per   mixture is sprayed on roadsides to control mosquito
           25 sq ft of standing water.                           breeding grounds hidden by tall grass.
           a. At this rate, find how many teaspoons of granules   a. If one mixture of water with this pesticide can
              must be used for 450 square feet.                     treat 150 feet of roadway, how many ounces of
           b. If 3 tsp = 1 tbsp , how many tablespoons of           pesticide are needed to treat one mile? (Hint:
              granules must be used?                                1 mile =  5280 feet)
                                                                 b. If 8 liquid ounces equals one cup, write your
                                                                    answer to part a in cups. Round to the nearest
                                                                    cup.




        31. The daily supply of oxygen for one person is      32. In a recent year, approximately $16 billion of the $40
           provided by 625 square feet of lawn.A total of 3750   billion Americans spent on their pets was spent on
           square feet of lawn would provide the daily supply of  pet food. Petsmart had $4,672,656 in net sales that
           oxygen for how many people? (Source: Professional     year. How much of Petsmart’s net sales would you
           Lawn Care Association of America)                     expect to have been spent on pet food? (Source:
                                                                 American Pet Products Manufacturers Association
                                                                 and Petsmart)



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