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Example of divisibility rule for 21?
a number is divisible by 12 if the number is also divisible by both 3 and 7. You mean a number is divisible by 21 if it is divisible by 3 and 7.
What is the fraction 12 over 21 reduce to its simplest form?
12/21 = 4/7 NOTE : The original fraction can be simplified as both the denominator and numerator are divisible by 3. That is, 3 is a common factor of 12 and 21.
What are the postitive integers less than 21 that are divisible by 4?
4, 8, 12, 16, and 20.
Why is the number 21 composite?
Because 21 is divisible by numbers other than 1 and 21. 21 is divisible by 1, 3, 7, 21
What is the probability that a randomly selected number from 20 to 30 is divisible by 3 and then divisible by 12 after replacement first?
To find the probability that a randomly selected number from 20 to 30 is divisible by 3 and then divisible by 12, we first identify the numbers in that range: 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30. Among these, the numbers divisible by 3 are 21, 24, 27, and 30, which gives us 4 successful outcomes. Next, the only number among these that is also divisible by 12 is 24. Thus, the probability of selecting a number that is divisible by 3 and then, after replacement, is divisible by 12 is the product of the probabilities of each event: ( \frac{4}{11} \times \frac{1}{11} = \frac{4}{121} ).
Example of divisibility rule for 21?
a number is divisible by 12 if the number is also divisible by both 3 and 7. You mean a number is divisible by 21 if it is divisible by 3 and 7.
What is the divisible of 21?
The numeral '21' is evenly divisible by 21, 7, 3, and 1.
What is the fraction 12 over 21 reduce to its simplest form?
12/21 = 4/7 NOTE : The original fraction can be simplified as both the denominator and numerator are divisible by 3. That is, 3 is a common factor of 12 and 21.
What is divisible by 105 and 21?
They're both divisible by 1,3,7, and 21.
What is divisible in 21 and 37?
There is nothing that is divisible in 37 and 21. Because 37 is a prime number. However, 21 is divisible by 3 and 7.
Why is 21 divisible by 1 21 3 and 7?
Because 21 is a multiple of 1, 3, 7 and 21.
What are the postitive integers less than 21 that are divisible by 4?
4, 8, 12, 16, and 20.
Why is the number 21 composite?
Because 21 is divisible by numbers other than 1 and 21. 21 is divisible by 1, 3, 7, 21
What is 145 divisible by 12?
145 is not divisible by 12.
How is a no divisible by 21?
By any multiples of 21
What is the probability that a randomly selected number from 20 to 30 is divisible by 3 and then divisible by 12 after replacement first?
To find the probability that a randomly selected number from 20 to 30 is divisible by 3 and then divisible by 12, we first identify the numbers in that range: 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30. Among these, the numbers divisible by 3 are 21, 24, 27, and 30, which gives us 4 successful outcomes. Next, the only number among these that is also divisible by 12 is 24. Thus, the probability of selecting a number that is divisible by 3 and then, after replacement, is divisible by 12 is the product of the probabilities of each event: ( \frac{4}{11} \times \frac{1}{11} = \frac{4}{121} ).
Is 560 divisible by 12?
No. 560 is not evenly divisible by 12.
