Final answer:
To write a transactional rate for a cup of water priced at "0.20 cents", you should convert it to dollars which would be $0.002 per cup. Multiplying the per-cup price by the number of cups gives you the total cost, which will be a small amount due to the low transactional rate.
Step-by-step explanation:
If a fast-food restaurant has a sign that water is "0.20 cents" for one cup, the transactional rate can be written as $0.002 per cup of water. To write this as a proper monetary value, remember that 100 cents equal $1. Therefore, "0.20 cents" is actually two-tenths of one cent, or $0.002.
Example
Let's say a customer wants to buy 5 cups of water. The total cost would be:
- 5 cups × $0.002 per cup = $0.010 in total
This is a very small amount, showing that the transactional rate for water is extremely low at this restaurant.