A food contains 30% of a day's supply of calcium for a particular person. If that person requires 1,500 mg of calcium, how much calcium does the food contain?
0.02 mg
450 mg ®
50 mg
1,200 mg​

Respuesta :

DP2008

Answer:

450mg

Step-by-step explanation:

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450mg
30% is 30 out of 100 which can also be written as 0.3.
30% of a days supply can mathematically be written as
30% x 1500 or 1500x 0.3