Question #c5e26

1 Answer
Dec 12, 2016

Answer:

#"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 #"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 #"20 mg"# of this drug. Since you know that each tablet has #"20 mg"#, you can say that each dose will need

#40 color(red)(cancel(color(black)("mg"))) * "1 tablet"/(20color(red)(cancel(color(black)("mg")))) = color(darkgreen)(ul(color(black)("2 tablets")))#

Therefore, you can administer #"160 mg"# of this drug in #4# doses by using #2# #"20-mg"# tablets per dose.