With the use of variables in mathematical expressions, you
can program the computer to do useful calculations for yourself. How about the tip in a restaurant? If you
know the cost of a meal $(meal)$, and decide what percentage to leave the server $(per)$, the tip will be
$tip=per/100\times meal$. With this, the total cost of the meal will be $total=meal+tip$. See if you
can finish the code below, and have a "tip calculator."
Now you try. Try finishing this tip calculator based on the formulas discussed above.
Type your code here:
See your results here:
Show a friend, family member, or teacher what you've done!
Here is a share link to your code:
Does your code work? Want to run it on your iPhone?
Here's your code:
Use [Control]-[C] (Windows) or [⌘]-[C] (MacOS) to copy your code.
Paste it using [Control]-[V] (Windows) or [⌘]-[V] (MacOS) into
Then click the "Use on iPhone" button that you'll see.