If the 10 books are all different, we have:
• 10 ways of selecting the first book,
,
• 9 ways of selecting the second book,
,
• 8 ways of selecting the third book,
,
• 7 ways of selecting the fourth book.
The total number of ways to arrange 4 of the 10 books is:

Answer
There are 5040 ways of arranging the books.
Answer:
Each employee took home 1/4 of pizza each.
Step-by-step explanation:
1. Picture a pizza as being a full 100%.
2. Since each employee took home the same amount of pizza, you need to divide the pizza equally by 4. 100 ÷ 4 = 25 this also equals 25/100
3. To reduce the fraction 25/100, you have to find a number that both the numerator and denominator can be divided by.
4. In this scenario, 25/100 can both be divided by 25.
5. 25 ÷ 25 = 1 100 ÷ 25 = 4
6. Therefore the final answer is each employee took home 1/4 of the pizza.
8=384 9=248 hope this helped
Answer:
The dimensions ⇒ 3 × 4
Step-by-step explanation:
* Any matrix has two dimensions
- Raw and column
- The dimensions very important in the operations on matrices
- We called the number of raw m and the number of column n
- We must write the number of raw before the number of column
- m × n is the dimensions of the matrix
* Example : If the dimension of a matrix is 2 × 3, that
means the matrix has 2 raw and 3 column
* Now lets look to our problem
∵ It has 3 raw and 4 column
∴ Its dimensions is 3 × 4
92 crayons
23sheets of paper
92÷23=4
4 crayons per sheet
Answer is 23 packets