college biology

Question

Your doctor prescribed eye drops for you to treat a certain condition. You obtain the eye drop liquidmedication in a small bottle containing a total volume 20 ml. Your instructions were to apply 2 drops in eacheye once per day. Given that the volume of 1 drop is 0.05 ml. Calculate many days will the eye dropliquidmedication last?

Answer 1

To calculate total volume used per day:

The volume of 1 drop is 0.05 ml x 2 drops= 0.1 ml per eye x 2 eyes= 0.2 ml per day

To calculate how many days:

20 ml / 0.2 ml per day= 100 days

Answer 2

Hi Nick, that was pretty sneaky slipping math into a biology problem, wasn't it?

Your doctor prescribed eye drops for you to treat a certain condition. You obtain the eye drop liquid medication in a small bottle containing a total volume 20 ml. Your instructions were to apply 2 drops in each eye once per day. Given that the volume of 1 drop is 0.05 ml. Calculate many days will the eye drop liquid medication last?

Let's start with what we know:

1. the bottle has 20 ml of liquid
2. the dose is 2 drops per eye per day
3. one drop equals 0.05 ml
4. the average human being has 2 eyes (inferred) 😁

Now let's see how much medicine we use in one day:

1. 2 drops per eye per day

Substitute numbers for words:

1. 2 x 0.05 x 2 = 0.2 ml used per day

How long will the bottle last?

1. 20 ml ÷ 0.2 ml per day = 100 days