Answer:
NO It will pay the remaining 10 dollars later.
Step-by-step explanation:
There are four requirement according to the Uniform Commercial Code:
- You and the creditor disagree about the claim amount or haven't finalized it.
- The paid in "full statement" is easy to see.
- You pay the amount in good faith.
- The creditor cashes the check.
In this case the first and third criteria are not met. The amount is certain, easy to identify the cost of the service and both parties are informed of these amount.
Also, is important to notice Sami is not acting in good faith at all. Is doing this to exploit his knowledge over the waiter.
The fact the restaurant cashes the check do not avoid further claims on Sami the UCC (Uniform Commerical Code) gives about 90 days after cashing the check in favor of the creditor to change his mind and proceed with the collection of the full amount.
Most probably Sami will have to pay the ten dollars later or to find another restaurant.