Greatest common factor of 21, 35, 49

Answers

Answer 1

Answer:

The greatest common factor of 21, 35, and 49 is 49, which is determined by the prime factorization.

To find the greatest common factor (GCF) of 21, 35, and 49, we can start by finding the prime factorization of each number.

Here are the prime factorizations of the given numbers:

21 = 3 x 7
35 = 5 x 7
49 = 7 x 7

To find the GCF, we need to identify the common prime factors and multiply them together.

Here, the only common prime factor is 7, which appears twice in the prime factorization of 49.

Therefore, the GCF of 21, 35, and 49 is 7 x 7 = 49.

So, the greatest common factor of 21, 35, and 49 is 49.

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Answer 2

Answer: I think it is 7 because 7 x 3 = 21
7 x 5 = 35
7 x 7 = 49

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Pam typed 2.5 pages in 15 minutes. At that rate, how many minutes will it take her to type 23 pages?

Answers

In the given question, it is already mentioned that Pam takes 15 minutes to type 2.5 pages. this information should be used as the main information for reaching the desired answer.
Pam typed 2.5 pages in = 15 minutes
Then time taken by Pam to type 23 pages = (15/2.5) * 23
   = 345/2.5
   = 3450/25
      = 138
So Pam will take 138 minutes to type 23 pages

Well, first of all, you have to compare;
15 minutes=2.5 pages
x=23 pages
Then you cross multiply. By the way, i replaced the unknown with x. Anyway, x multiplies 2.5 and 23 multiplies 15. So that will be;
2.5x=345
Then you divide both sides by 2.5. This is done to remove all that is attached to x to find x
2.5x/2.5 = 345/2.5
Therefore, 345 divided by 2.5 is 138. So;
x=138
It will take 138 minutes to type 23 pages. HOPE I HELPED.

5/8b-3=12 how do i do this

Answers

Well you’re solving for B, which would leave your answer to be 24. Simplify big sides of the equation and isolate the variable and you get 24

What is 9.765 rounded to the nearest tenth

Answers

You round it up to 9.8 because the hundredth place is above 5.

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it would be 9.8 rounded to the nearest tenth

Derrick earned $1,472 during the 4 weeks he had his summer job. he earned the same amount each week, how much did he earn each week?

Answers

all you have to do is do 1472x4

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80 is 1/10 of what number

Answers

80 is 1/10 of 800

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The difference of 2 and the product of 3and k

Answers

2-3k because the difference between something means it is subtraction and the product of 3 and k would just be 3k since you don't know what k is.

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