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3 years ago

Which choice shows how to find the greatest common factor of 18 and 72 through prime factorization

1 answer:

6 0

$\begin{array}{c|c}18&2\\9&3\\3&3\\1\end{array}\\\\18=\boxed2\cdot\boxed3\cdot\boxed3\\\\\begin{array}{c|c}72&2\\36&2\\18&2\\9&3\\3&3\\1\end{array}\\\\72=2\cdot2\cdot\boxed2\cdot\boxed3\cdot\boxed3\\\\GCF(18,\ 72)=\boxed2\cdot\boxed3\cdot\boxed3=\boxed{\boxed{18}}$

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What is the value of x

viktelen [127]

Answer:

X=14

Step-by-step explanation:

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3 years ago

What is the missing fraction for 1/6 1/8 1/4 ?/? = 1whole

denis23 [38]

The answer is 11/24.

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3 years ago

Sam deposits the same amount of money,every week,for 71 weeks in his checking account.At the end of 71 weeks,he has $6,015 in th

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3 years ago

Ron finds 9 books at a bookstore that he would like to buy, but he can afford only 5 of them. In how many ways can he make his s

olga55 [171]

Answer:

d. 126; 70

Step-by-step explanation:

given that Ron finds 9 books at a bookstore that he would like to buy, but he can afford only 5 of them.

Out of 9 books he has to select 5 of them

Here selection of books can be done in any order. Hence order does not matter

No of ways he selects 5 books out of 9 books = 9C5

= 126

Part II

One book is a must

Hence he has options only 4 books from the remaining 8.

No of ways when one book is compulsory = selecting 3 books from 8 books

= 8C4

= 70

Option d is right.

6 0

2 years ago

There were 35,000 hardback copies of a certain novel sold before the paperback version was issued. From the time the first paper

bija089 [108]

Answer:

3,717,000

Step-by-step explanation:

The calculation of paperback copies is shown below:-

Let us assume hardback copies is x, so paperback copies will be 9x

now the equation is

35,000 + x + 9x = 448,000

10x = 448,000 - 35,000

10x = 413,000

$= \frac{413,000}{10}$

= 41,300

Therefore, the paperback copies are

= $9\times 41,300$

= 3,717,000

Hence, the paperback copies is 3,717,000

4 0

3 years ago