Week 16 - Phone Numbers/License Plates/UPC

Front

What is the total number of phone numbers that can be created for area codes 404, 470, 478, 678, 706, 762, and 770?

Back

70,000,000

Front

What is the purpose of a check digit in a UPC code?

Back

To ensure accuracy and detect errors

Front

How many different codes can be made with a combination of letters where letters may NOT repeat?

Back

358,800

Front

How many license plates can be made in a specific format?

Back

6,760,000

Front

What is a UPC code?

Back

A Universal Product Code used to identify products.

Front

What does the check digit in a UPC code help to do?

Back

It helps to verify that the UPC code has been scanned correctly.

Front

How many digits are typically in a standard phone number in the U.S.?

Back

10 digits (3-digit area code + 7-digit local number).

Front

What is the format of a typical license plate in the U.S.?

Back

A combination of letters and numbers, often in a specific pattern.

Front

What is the significance of area codes in phone numbers?

Back

Area codes designate specific geographic regions for telephone services.

Front

How is the total number of possible combinations calculated for license plates?

Back

By multiplying the number of choices for each character in the plate.