Find the digit that makes 3,71_divisible by 9
A. 3
B. 7***
C. 1
D. 5
List all the factors of the number 30
A. 1,2,3,5,6,10,15,30
B. 2,3,4.10,20.30.40
C. 1,2,4,5,10,15,30***
D. 1,2,4,5,8,10,20,40
What is the prime factorization of 540?
A. 2 x 2 x 3 x 3 x 3 x 7***
B. 3 x 3 x 12 x 5
C. 2 x 2 x 3 x 3 x 3 x 5
D. 2 x 2 x 3 x 3 x 5
Find the GCF of the numbers 55 and 44
A.-11
B. 11***
C. 220
D. 55
*** Means that is what i think the answer is.
For #3, the prime factorization of 540 would be 2 x 2 x 3 x 3 x 3 x 5. Not the one you chose. So you answer was wrong for #3 and the correct answer would be C.
To be honest, I really don't. But I am just happy I helped anyways!
Sorry, I meant not C
For the last one, the Greatest Common Factor of 55 and 44 would be 11. Therefor, you answer was correct and the correct answer would be B.
Can somebody help me i really need help
Well, for the first one I think is 7. Which means the first your answer is correct. Still checking the rest.
Thank you
For the second one -- 1, 2, 3, 5, 6, 10, 15, 30. Which means the answer would be A. Not B. So your answer was wrong for #2
Thank you sooooo much you don't know how much you just helped me
To find the digit that makes 3,71 divisible by 9, you need to add up all the digits in 3,71 and check if the sum is divisible by 9.
Here's how you can do it:
3,71 => 3 + 7 + 1 = 11
Since 11 is not divisible by 9, we need to find a digit that can be added to 11 to make it divisible by 9. To do this, we can subtract the remainder when 11 is divided by 9 from 9 itself.
9 - 11 % 9 = 9 - 2 = 7
Therefore, the digit that makes 3,71 divisible by 9 is 7. So, the answer is option B.
To list all the factors of the number 30, you need to find all the numbers that divide evenly into 30.
Here's how you can do it:
Start with 1 and divide 30 by it:
30 ÷ 1 = 30
Continue dividing by increasing numbers until you reach 30:
30 ÷ 2 = 15
30 ÷ 3 = 10
30 ÷ 4 = 7.5 (not a whole number)
30 ÷ 5 = 6
30 ÷ 6 = 5
30 ÷ 7 = 4.28 (not a whole number)
30 ÷ 8 = 3.75 (not a whole number)
30 ÷ 9 = 3.33 (not a whole number)
30 ÷ 10 = 3
So, the factors of 30 are: 1, 2, 3, 5, 6, 10, 15, 30. Therefore, the answer is option A.
To find the prime factorization of 540, you need to express it as a product of its prime factors.
Here's how you can find the prime factorization of 540:
Start with the smallest prime number, which is 2, and divide 540 by it:
540 ÷ 2 = 270
Continue dividing by increasing prime numbers until you can no longer divide evenly:
270 ÷ 2 = 135
135 ÷ 3 = 45
45 ÷ 3 = 15
15 ÷ 3 = 5
Since 5 is a prime number, we cannot divide further.
So, the prime factorization of 540 is: 2 × 2 × 3 × 3 × 3 × 5. Therefore, the answer is option A.
To find the Greatest Common Factor (GCF) of the numbers 55 and 44, you need to find the largest number that divides both 55 and 44 evenly.
Here's how you can find the GCF of 55 and 44:
Start with the smaller number, which is 44, and check if it divides evenly into 55:
55 ÷ 44 = 1.25 (not a whole number)
Then, try dividing the smaller number by decreasing numbers until you find a common factor:
44 ÷ 2 = 22
22 ÷ 2 = 11
Since 11 is a common factor, it is the largest number that divides both 55 and 44 evenly. Therefore, the answer is option B, which is 11.