18÷19=0.94736....................
Answer:
Flora needs 5/8 ribbon
Step-by-step explanation:
The distance would be 21. to find the difference, add the absolute values so 12+9, which equals 21
Answer:
The singers can finish first through fifth in 360360 ways.
Step-by-step explanation:
The order of the singers is important, because they are ranked by positions. So we use the permutations formula to solve this question.
Permutations formula:
The number of possible permutations of x elements from a set of n elements is given by the following formula:
![P_{(n,x)} = \frac{n!}{(n-x)!}](https://tex.z-dn.net/?f=P_%7B%28n%2Cx%29%7D%20%3D%20%5Cfrac%7Bn%21%7D%7B%28n-x%29%21%7D)
In this question:
Top five singers, from 15 finalists. So
![P_{(15,5)} = \frac{15!}{(15-5)!} = 360360](https://tex.z-dn.net/?f=P_%7B%2815%2C5%29%7D%20%3D%20%5Cfrac%7B15%21%7D%7B%2815-5%29%21%7D%20%3D%20360360)
The singers can finish first through fifth in 360360 ways.
A jar of marbles = 4/4 or 12/12
He gave kayla 3/4 or 9/12 he left 1/4 or 3/12 in the jar
Kayla returned 1/3 or 4/12
3/12+ 4/12 = 7/12
7/12 of the jar is full