Ellen spent $15.45 on lunch at a restaurant. How much will she pay for a 20% tip? What is her total cost for lunch with the tip?

Answer 1

To calculate a 20% tip on Ellen's lunch cost of $15.45, you can use the following steps:

1. Calculate the tip: \[ \text{Tip} = 15.45 \times 0.20 = 3.09 \]

2. Calculate the total cost including the tip: \[ \text{Total cost} = \text{Lunch cost} + \text{Tip} = 15.45 + 3.09 = 18.54 \]

Therefore, Ellen will pay $3.09 for the tip and the total cost for lunch with the tip will be $18.54.