According to the Water Research Foundation, the average household uses about 240 gallons of water per day for indoor and outdoor use.

a) The average American shower uses roughly 17 gallons of water and lasts for around 8 minutes. The average household has 3 people (rounded) so what percentage of the water usage in a day is used by showers?

We are given the following information:

- The average household uses 240 gallons of water per day.
- The average shower uses 17 gallons of water.
- The average shower lasts 8 minutes.
- The average household has 3 people.

To find the percentage of total water usage used by showers:

1. **Calculate the total water used by all showers in a household per day**:

   Each person uses 17 gallons of water per shower, and there are 3 people in the household. Assuming each person takes one shower per day:
   \[
   \text{Total shower water per day} = 17 \text{ gallons/shower} \times 3 \text{ people} = 51 \text{ gallons/day}.
   \]

2. **Calculate the percentage of daily water used by showers**:

   The percentage of water used by showers is:
   \[
   \text{Percentage} = \left( \frac{\text{Shower water per day}}{\text{Total water usage per day}} \right) \times 100
   \]
   \[
   \text{Percentage} = \left( \frac{51}{240} \right) \times 100 \approx 21.25\%.
   \]

So, approximately **21.25%** of the daily water usage is used by showers.

Would you like further details or explanations? 

Here are 5 related questions:
1. How would the percentage change if each person took 2 showers per day?
2. How many gallons of water does a household use on non-shower activities?
3. What would be the percentage if the household had 4 people instead of 3?
4. How much water could be saved by reducing shower time to 5 minutes?
5. If the household used 300 gallons per day, how would the shower percentage change?

**Tip:** Reducing shower time or using water-efficient showerheads can significantly reduce water usage.

The average American shower uses roughly 17 gallons of water and lasts for around 8 minutes. The average household has 3 people (rounded) so what percentage of the water usage in a day is used by showers?

Learn how to calculate the percentage of daily water usage dedicated to showers in a 3-person household. Given that each shower uses 17 gallons of water and the average household uses 240 gallons per day, this problem covers percentage calculations and water conservation tips. Suitable for students in Grades 6-8.

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