Answer:
These horses can finish first, second and third in 1320 different ways.
Step-by-step explanation:
The order in which the horses finish is important. That is, horse A finishing 1st, horse B 2nd and horse C 3rd is a different outcome than horse B 1st, horse A 2nd and horse C 3rd.
So the permutations formula is used 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:
Assuming there are no ties, how many different ways can these horses finish first, second, and third?
12 horses.
3 first positions.
So
These horses can finish first, second and third in 1320 different ways.
Answer:
3
Step-by-step explanation:
<h3>Steps to answering this question : </h3>
- Determine the perimeter of the ceiling
- Divide the perimeter of the ceiling by the length of the rolls of crepe paper
Perimeter of square = 4l
Where l = length of a side
4 x 15 feet = 60 feet
60/20 = 3
Answer:
20%
Step-by-step explanation:
1/5 as a decimal:
0.2
Since percentages are out of a hundread, your final answer is 20%
Answer:
$9 an hr.
Step-by-step explanation:
4 1/4 + 1 3/4 = 6
= 6hrs combined.
$54 = 54/6 = 9
=$9 an hr.