queenkimm26
09.08.2021 •
Mathematics
The access code for a cars security system consists of 4 digits. The first digit cannot be 0 and the last digit nust be even. How many different codes are available?
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Ответ:
4500
Step-by-step explanation:
The first digit can't be 0. so it will be a number from 1000 to 9999. That's a total of 9000 numbers (9999-1000+1=9000). Since the last digit must be an even number that is one half of the 9000 numbers which is 4500.
Ответ:
What information are you looking to find?
It appears you want to know how many hours Joanna worked...
Dollars/(dollars per hour) = hours
432/12 = 36 hours worked
Step-by-step explanation: