Answer:
1.5 or 1 and a half of a tablet
Explanation:
A single tablet has a weight of 500 mg. We require a number of tablets such that their total weight will be 0.75 g. The first step would be to convert the 0.75 g to mg by multiplying 0.75 by 1000 since 1 g = 1000 mg;
this yields 750 mg.
Now, 1 tablet has a mass of 500 mg, how many tablets will have a mass of 750 mg;
we simply divide 750 by the mass of a single tablet. 750/500 = 1.5 tablets.