person6764
03.07.2019 •
Mathematics
The digits 1, 2, 3, 4 and 5 are randomly arranged to form a three digit number. the digits are not repeated. what is the proabability the number is even and greater than 500?
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Ответ:
1/10
Step-by-step explanation:
There are 5·4·3 = 60 ways to choose a 3-digit number from 5 digits (no repeats).
There re 1·2·3 = 6 ways to choose a number 5x2 or 5x4 from those digits.
The probability of randomly choosing one of 60 that is one of the 6 is ...
... 6/60 = 1/10
Ответ:
B: 4x=24
Divide each side by 4
4x/4=24/4
x=6
Heather can make 6 desserts