Question

A certain antihistamine is often prescribed for allergies. A typical dose for a 100​-pound person is 19mg every six hours. Complete parts​ (a) and​ (b) below. Following this​ dosage, how many 13.2mg chewable tablets would be taken in a​ week? A​ 100-pound person could take ____ tablets in a week. ​(Round to the nearest whole number as​ needed.)

Answer 1

Explanation:

b. A​ 100-pound person could take

enter your response here mL in a week.

​(Round to the nearest whole number as​ needed.)

Answer 2

40 tablets

Explanation:

What we want to do is find how many mg of antihistamine you can take in a week.

If you can take 19mg in 6 hours, that means you can take
`19\cdot4=76`mg per day (because
`24/6=4`, so you can take 19mg every 6 hours 4 times in a day.)

There are 7 days in a week, so you can take
`76\cdot7=532` mg per week.

Now, we know how many mg of antihistamine you can take per week. If we take antihistamine in increments of 13.2mg, then the total amount of tablets we can take per week is going to be
`532/13.2`, which is approximately equal to 40.

So you can take 40 tablets in a week if you are 100 pounds.

Hope this helped!