Answer: 700.067 g
Step-by-step explanation:
Given : The pharmacist uses 67mg, 100g and 0.6 kg of drug to compound 3 separate prescription.
We know that 1 gram= 1000 milligram
and 1 kilogram = 1000 grams
Then, By UNITARY METHOD, [tex]\text{1 mg}=\dfrac{1}{1000}\text{ gram}[/tex]
Now, We convert each amount of drug into grams as ,
[tex]67\ mg=67\times\dfrac{1}{1000}\ g\\\\=0.067\text{ g}[/tex]
AND
[tex]0.6\ kg=0.6\times100=60\text{ g}[/tex]
Now, the total drug used by Pharmacist (in grams) = [tex]0.067+100+600=700.067\ g[/tex]
Hence, Pharmacist used 700.067 g of total drug.