Anita wants to use milk and orange juice to increase the amount of calcium and vitamin A IN HER DAILY DIET. AN OUNCE OF ORANGE JUICE CONTAINS 5 MILIGRAMS OF CALCIUM AND 60 MICROGRAMS OF VITAMIN A. AN OUNCE OF MILK CONTAINS 38 MILLIGRAMS OF CALCIUM AND 56 MICROGRAMS OF VITAMIN A. DETERMINE HOW MANY OUNCES OF MILK AND ORANGE JUICE ANITA SHOULD DRINK EACH DAY TO PROVIDE EXACTLY 550MILLIGRAMS OF CALCIUM AND 1200MICROGRAMS OF VITAMIN A

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Asked Sep 26, 2019
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Anita wants to use milk and orange juice to increase the amount of calcium and vitamin A IN HER DAILY DIET. AN OUNCE OF ORANGE JUICE CONTAINS 5 MILIGRAMS OF CALCIUM AND 60 MICROGRAMS OF VITAMIN A. AN OUNCE OF MILK CONTAINS 38 MILLIGRAMS OF CALCIUM AND 56 MICROGRAMS OF VITAMIN A. DETERMINE HOW MANY OUNCES OF MILK AND ORANGE JUICE ANITA SHOULD DRINK EACH DAY TO PROVIDE EXACTLY 550MILLIGRAMS OF CALCIUM AND 1200MICROGRAMS OF VITAMIN A

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Expert Answer

Step 1

Anita wants to use milk and orange juice to increase the amount of calcium and vitamin A in her daily diet. An ounce of orange juice contains 5 mg of calcium and 60 micrograms of vitamin A. An ounce of milk contains 38 mg of calcium and 56 micrograms of vitamin A.

Step 2

To determine how may ounces of milk and orange juice Anita should drink each day to provide exactly 550g of calcium and 1200 micrograms of vitamin A:

First set the equation:

Let x = ounce of milk 

y = ounce of the orange juice

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38.x +5y 550 (1) 56x+60y 1200 (2)

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Step 3

Formula used:

Solved the above equation using elimination method. To solve the linear ...

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38.x 5y 550 (1) 56x 60y 1200 (2)

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