62) A 25.5-mL bottle of Jerry’s favorite cologne costs $38.00. Each stroke of the spray applicator delivers 0.15 mL of cologne. If he paid $27.20 for the bottle, what is the cost of each spray? Use the table for Exercises 63–68. 12-oz Beverage or Caffeine Amount as Noted (milligrams) Red Bull (8.2 oz) 80.0 Jolt 71.2 Pepsi One 55.5 Mountain Dew 55.0 Dr. Pepper 41.0 (National Soft Drink Association) 63) Which has more caffeine, a four-pack of Red Bull or a six-pack of Pepsi One? 64) Which has more caffeine, two Jolts or four Dr. Peppers? 65) If Rene drinks two cans of Red Bull per day, how many grams of caffeine does he receive each week? 66) If Maurice drinks two cans of Mountain Dew per day, how many grams of caffeine does he receive each week? 67) How many grams of caffeine are in a six-pack of Pepsi One cans? 68) How many grams of caffeine are in a four-pack of 8.2-oz Red Bull cans? 52) A drug prescription of 60 pills costs $326.40. If each pill contains 4 mg of medication, what is the cost per milligram? Mixed Exercises: Objectives 1 and 2 Perform the indicated operation. 53) Multiply 118 mL by 15. 54) 1.85 L 216 mL 55) 1.65 kg 980 g 56) Divide 6.3 m by 7. 57) 0.5 cm 50 mm 58) 0.35 kg 35 g 59) Divide 1.2 m by 4. 60) 4.7 cm 47 mm Solve each problem. 61) Charlotte’s lip gloss costs $5.10 for 10.2 mL. If each application uses 0.06 mL, what is the cost per application? R1) Think back on the main objectives involving metric units. Write a paragraph describing what makes the metric system easy to use. R2) Which objectives do you still need to master? www.mhhe.com/messersmith SECTION 7.4 Solve Applied Problems Involving Metric Units 471
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