Question

PLEASE HELP W/ SAT PREP
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?

Answer 1

The total number of calories one may take from the milk is equal to 299n. That from the cups of juice is 261m. The sum of these amounts should be greater than or equal to 1000. The inequality that best describes the situation is,
                                    299n + 261m ≥ 1000