Answered: Calories Fat Carbohydrates All Bran 50…

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter4: Polynomial And Rational Functions

Section4.6: Rational Functions

Problem 11SC: Find the mean hourly cost when the cell phone described above is used for 240 minutes.

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. Nutrition The following table gives the calories,
fat, and carbohydrates per ounce for three brands of
cereal, as well as the total amount of calories, fat, and
carbohydrates required for a special diet.

To find the number of ounces of each brand that
should be combined to give the required totals of
calories, fat, and carbohydrates, let x represent the
number of ounces of All Bran, y represent the
number of ounces of Sugar Frosted Flakes, and z represent the number of ounces of Natural Mixed Grain.
a. Use the information in the table to write a system
of three equations.
b. Solve the system to find the amount of each brand
of cereal that will give the necessary nutrition.

Calories Fat Carbohydrates
All Bran
50
22.0
Sugar Frosted Flakes
108
0.1
25.5
Natural Mixed Grain
127
5.5
18.0
Total Required
393
5.7
91.0

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