Percent - XYZ Custom Plus
Percent - XYZ Custom Plus
Percent - XYZ Custom Plus
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5.2 Basic <strong>Percent</strong> Problems315Example 4What number is 43.5% of 25?g g gn = 0.435 ⋅ 25n = 10.910.9 is 43.5% of 25ggRounded to the nearest tenth4. What number is 63.5% of 45?(Round to the nearest tenth.)Example 5What percent of 78 is 31.9?g g gggn ⋅ 78 = 31.9_ n ⋅ 78 = _31.9 78 78 n = 31.9 _78 n = 0.409 Rounded to the nearest thousandthn = 40.9%5. What percent of 85 is 11.9?40.9% of 78 is 31.9Example 634 is 29% of what number?g g34 = 0.29 ⋅ n_340.29 = _ 0.29⋅ n 0.29_340.29 = nggg117.2 = n Rounded to the nearest tenth6. 62 is 39% of what number?(Round to the nearest tenth.)34 is 29% of 117.2BFood LabelsExample 7As we mentioned in the introduction to this section, theAmerican Dietetic Association recommends eating foods in which the number ofcalories from fat is less than 30% of the total number of calories. According to thenutrition label below, what percent of the total number of calories is fat calories?Nutrition FactsServing Size 1/2 cup (65g)Servings Per Container: 8Amount Per ServingCalories 150Calories from fat 90% Daily Value*Total Fat 10g16%Saturated Fat 6g32%Cholesterol 35mg12%Sodium 30mg1%Total Carbohydrate 14g5%Dietary Fiber 0g0%Sugars 11gProtein 2gVitamin A 6% • Vitamin C 0%Calcium 6% •Iron 0%*<strong>Percent</strong> Daily Values are based on a 2,000calorie diet.7. The nutrition label below isfrom a package of vanilla frozenyogurt. What percentof the total number of calories isfat calories? Round youranswer to the nearest tenth ofa percent.Nutrition FactsServing Size 1/2 cup (98g)Servings Per Container: 4Amount Per ServingCalories 160Calories from fat 25% Daily Value*Total Fat 2.5g4%Saturated Fat 1.5g7%Cholesterol 45mg15%Sodium 55mg2%Total Carbohydrate 26g9%Dietary Fiber 0g0%Sugars 19gProtein 8gVitamin A 0% • Vitamin C 0%Calcium 25% •Iron 0%*<strong>Percent</strong> Daily Values are based on a 2,000calorie diet.Answers4. 28.6 5. 14% 6. 159.0Figure 2Nutrition label from vanilla ice cream