Terrell has a water purifier for backpacking. It will purify 1

liter of water in 1 minute. How long would it take Terrell to
purify enough water for 4 canteens that each hold 750 mL,
and two that each hold 1.5 L?

6 minutes or 4.5 minutes

6 minutes

total water: (4*.750 + 2*1.5)L

at 1L/min, how long is that?

Terrell fill all canteens in 4.5 minutes

4.5 minutes

4 * 0.750 + 2 * 1.5 = 6.7 L

1 L/min, 6.7 L/?
? = your answer

To find out how long it would take Terrell to purify enough water for the given number of canteens, we need to calculate the total amount of water that needs to be purified first. Let's break down the calculation step by step.

1. Convert the volume of each canteen to liters:
- Each canteen that holds 750 mL is equal to 0.75 L (since there are 1000 mL in 1 L).
- Each canteen that holds 1.5 L remains the same.

2. Calculate the total volume of water needed to be purified:
- There are 4 canteens that each hold 0.75 L, so the total volume for those is 4 * 0.75 = 3 L.
- There are 2 canteens that each hold 1.5 L, so the total volume for those is 2 * 1.5 = 3 L.

3. Calculate the total volume of water that needs to be purified:
- Add up the volumes from step 2: 3 L + 3 L = 6 L.

Now that we know the total volume of water to be purified is 6 liters, and Terrell's water purifier can purify 1 liter of water in 1 minute, we can calculate the time required.

4. Calculate the time required:
- Divide the total volume by the purification rate: 6 L / 1 L/min = 6 minutes.

Therefore, it would take Terrell approximately 6 minutes to purify enough water for the given canteens.

6 minutes

Thank you this helped me a lot and got me a 20% extra on my math

Wait but what about this one?

The institute of medicine determined that a man should drink 3 liters of water a day and a woman should drink 2.2 liters. Mr. Morrison drank 880 ml of water at breakfast and Mrs.Morrision drank 700ml. How much more will they need to drink combined to meet the recommended amount for the day?