*SAT QUESTION*

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?

I'm confused and need a clear explanation. Which option should I choose?

The answer is Option A

Explanation:

Cup of milk m = 299 mg

Cup of juice j = 261 mg

Limit of intake = 1000mg

Total amount of calcium from milk = 299 × m = 299m mg

Total amount of calcium from juice = 261 × j = 261j mg

Since it must be equal to or exceeding the daily limit u use the GREATER THAN OR EQUAL TO SIGN.

299m + 261j > 1000

Answer and Explanation:

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