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Answer: one cup of milk contains 300 mg of calcium
Step-by-step explanation:
25% of 1200 is 300
Percentage is a way to describe a part of a whole. The amount of calcium in a cup of milk is 300 milligrams.
What is Percentage?
A percentage is a way to describe a part of a whole. such as the fraction 1/4 can be described as 0.25 which is equal to 25%. To convert a fraction to a percentage, convert the fraction to decimal form and then multiply by 100 with the '%' symbol.
As it is given to us that the daily recommended allowance of calcium for a sixth grader is 1,200 mg. but glass is having only 25% of the daily allowance, therefore,
Milligrams of calcium is in a cup of milk = 25% of 1200 mg
[tex]= \dfrac{25}{100}\times 1200\\\\= 300\rm\ mg[/tex]
Hence, the amount of calcium in a cup of milk is 300 milligrams.
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