the water authority charges $20 per month for the meter rent, $2.00 for the first 1000 liters and 20 cents for each additional 100 liters . what is the total bill for 2400 liters used in one month/

To calculate the total bill for 2400 liters of water used in one month, we can break the calculation into parts:

1. **Fixed charge (meter rent):**  
   This is a flat fee of $20 per month.
   \[
   \text{Fixed charge} = 20
   \]

2. **Charge for the first 1000 liters:**  
   The first 1000 liters cost $2.00.
   \[
   \text{First 1000 liters charge} = 2
   \]

3. **Charge for the additional 1400 liters:**  
   After the first 1000 liters, 2400 - 1000 = 1400 liters remain.  
   The cost for each additional 100 liters is $0.20. To find the total cost for 1400 liters:
   \[
   \frac{1400}{100} = 14 \quad \text{(this is how many 100-liter units)}
   \]
   So, the cost for the additional 1400 liters is:
   \[
   14 \times 0.20 = 2.80
   \]

4. **Total bill:**  
   Add up the fixed charge, the charge for the first 1000 liters, and the charge for the additional 1400 liters:
   \[
   \text{Total bill} = 20 + 2 + 2.80 = 24.80
   \]

Thus, the total bill for using 2400 liters in one month is **$24.80**.

---

Would you like more details on any part of the calculation?

Here are 5 related questions you might find helpful:
1. How would the bill change if 3500 liters were used in a month?
2. What if the water authority increased the price per 100 liters to 25 cents?
3. How much would be charged for 500 liters of water in a month?
4. What is the percentage increase in the bill if usage increases to 3000 liters?
5. What happens if the fixed meter rent decreases to $15 but usage remains the same?

**Tip:** Always ensure that charges per unit are properly scaled according to the quantities involved in the problem.

The water authority charges $20 per month for the meter rent, $2.00 for the first 1000 liters, and 20 cents for each additional 100 liters. What is the total bill for 2400 liters used in one month?

Learn how to calculate the total water bill for 2400 liters in a month with a detailed breakdown. This problem covers concepts like fixed charges, tiered pricing, and unit rate calculations, suitable for students in Grades 5-7.

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