Final answer:
To calculate the cost of filling a pool with 15,000 gallons of water at 0.5 cents per gallon, multiply the number of gallons by the cost per gallon in cents and convert dollars to cents. The total cost is 7500 cents.
Step-by-step explanation:
The question asks how much it would cost to fill a swimming pool with 15,000 gallons of water if one gallon costs 0.5 cents. To find the answer, you multiply the number of gallons by the cost per gallon:
- 15,000 gallons × $0.005 per gallon = $75.00
Since the cost is given in cents, we need to convert dollars to cents:
- $75.00 × 100 cents per dollar = 7500 cents
Therefore, the correct answer is 7500 cents.