The recommended daily calcium intake for a 20-year-old is 1,000 milligrams (mg). One cup of milk contains 299 mg of calcium and one cup of juice contains 261 mg of calcium. Which of the following inequalities represents the possible number of cups of milk m and cups of juice j a 20-year-old could drink in a day to meet or exceed the recommended daily calcium intake from these drinks alone?

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23-04-2018
Social Studies

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The recommended daily calcium intake for a 20-year-old is 1,000 milligrams (mg). One cup of milk contains 299 mg of calcium and one cup of juice contains 261 mg of calcium. Which of the following inequalities represents the possible number of cups of milk m and cups of juice j a 20-year-old could drink in a day to meet or exceed the recommended daily calcium intake from these drinks alone?

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missbianca missbianca · Answer 1 · 2018-05-07T11:20:20+02:00

In order to get the correct answer for the problem, you need to multiply the number of cups of the milk by the amount of calcium. Note that each cup contains the total amount of calcium from each source.

Find the sum of the two numbers in order to generate the total amount of calcium.

The problem needs the calcium from the two specified sources to be able to exceed or meet the recommended daily intake.

Then, the sum of the two products shall be greater than or equal to 1,000.

Lastly you will be able to conclude the result which is:

299m + 261j greater than or equal to 1,000