# Question c5e26

Dec 12, 2016

$\text{2 tablets}$

#### Explanation:

The first thing to do here is to figure out how many milligrams you need to administer per dose.

Since you know that the total dose amounts to $\text{160 mg}$ and that you need to divide this into $4$ doses, you can say that each dose will have

1 color(red)(cancel(color(black)("dose"))) * "160 mg"/(4color(red)(cancel(color(black)("doses")))) = "40 mg"#

So each dose must have $\text{20 mg}$ of this drug. Since you know that each tablet has $\text{20 mg}$, you can say that each dose will need

$40 \textcolor{red}{\cancel{\textcolor{b l a c k}{\text{mg"))) * "1 tablet"/(20color(red)(cancel(color(black)("mg")))) = color(darkgreen)(ul(color(black)("2 tablets}}}}$

Therefore, you can administer $\text{160 mg}$ of this drug in $4$ doses by using $2$ $\text{20-mg}$ tablets per dose.