You’ve finished eating at a restaurant, and received this bill:
- Cost of meal: $44.50
- Restaurant tax: 6.75%
- Tip: 15%
You’ll apply the tip to the overall cost of the meal (including tax).
STEP 1:
First, we assign these variables meal, tax and tip to their values:
meal = 44.50
tax = 6.75 %
tip = 15%
We also need to get rid of the percentage and turn them into decimals, so they look like
meal = 44.50
tax = 0.0675
tip = 0.15
STEP 2″
Create the variable tax and set it equal to the decimal value of 6.75%.
tax = 6.75/100
STEP 3:
Set the variable tip to decimal value of 15% on line 5.
tip = 15.0/100
STEP 4:
On line 7, reassign meal to the value of itself + itself * tax. And yes, you’re allowed to reassign a variable in terms of itself!
We’re only calculating the cost of meal and tax here. We’ll get to the tip soon.
Assign the variable total to the sum of meal + meal * tip on line 8. Now you have the total cost of your meal!
