Respuesta :

The answer is 500 micrograms.
An easy way to figure this out is to look at the milligrams, and realize that .5 is half of 1. From there, you would take half of 1000.
The answer is:  "500 mcg" .

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Given 0.5 mg . 

Note:  Given 1000 mcg = 1 mg ;  which is true; and is an "exact conversion" ;

Note:  "mcg" = "microgram(s)" ; 
           "mg" = "milligram(s)" .
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0.5 mg =  __?___  mcg ? ;
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0.5 mg ( 1000 mcg/ 1 mg) = __?__ mcg ? ;

The units of "mg" cancel out to "1" ; since "mg/mg" = 1 ; 

and we have:  " (0.5) * (1000 mcg) = 500 mcg .
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The answer is:  "500 mcg" .
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