1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jenyasd209 [6]
3 years ago
15

There are 100 runners entered in a marathon. How many different groups of three runners can finish in first, second, and third?

Does this problem involve permutations or combinations?
Mathematics
1 answer:
Lelu [443]3 years ago
3 0
Any one of the runners could be 1st.
Every runner except for the one that was 1st could be 2nd.
Every runner that wasn't 1st or 2nd could be 3rd.

100*99*98=970200 groups.
This involves permutations because order does matter.

Hope this helps!
You might be interested in
The graph of the function f(x)= x2 − 4x + 6 is shown here. What is its axis of symmetry?
alisha [4.7K]
X=-b/2a

x = 4/2=2

..................
6 0
2 years ago
Read 2 more answers
The following two-way table describes student's
guajiro [1.7K]

P ( work/ senior ) = 0.14

The attached table

required

P ( work/ senior )

This is calculated using:

P ( work/ senior ) = n ( work/ senior )/ n ( senior ).

n ( work/ senior ) = 5

n ( senior ) = 25 + 5 + = 35

So:

P ( work/ senior ) = 5/35

P ( work/ senior ) = 0.14

Add 25+5+5 (because that is all the numbers in the 'Seniors' row) and then take the 5 that is in the 'Work' column and put that over 25. (5/25 fraction as a percent is 14).

Learn more about probability at

brainly.com/question/24756209

#SPJ4

7 0
1 year ago
SOMEONE !!! I’ll mark brainliest !!
ASHA 777 [7]

Answer:

60

Step-by-step explanation:

45/9=5 an 12x5=60

jus trust

7 0
3 years ago
Read 2 more answers
What is 15,000 in percentage
Kay [80]

Add more details to answer

Helpful source:

https://percent-calc.com/what-is-9-of-15000

5 0
3 years ago
Read 2 more answers
WILL MARK YOU BRAINLIEST
Shalnov [3]

Answer:

the answer is 3/2

Step-by-step explanation:

...........

4 0
3 years ago
Other questions:
  • In the diagram bisectors of triangle ABC meet at point G. Find BG.
    9·1 answer
  • I need help! Help a 6th Grader out! Please Asap!
    13·1 answer
  • Lavina wants to buy a rocking chair for $160. She'll pay 10% down and pay the rest in six monthly installments. What will be the
    10·2 answers
  • An art teacher makes a batch of purple paint by mixing 3/4 cup red paint with 3/4 cup blue paint. If she mixes 13 batches, how m
    12·2 answers
  • Find x-component of vector v⃗ =(250m/s , 30∘ above + x-axis)
    13·1 answer
  • I just need the numbers can anyone help me with this ??
    8·2 answers
  • What is the area of this trapezoid?
    7·2 answers
  • Analyze the graph below to identify the key features of the logarithmic function.
    6·1 answer
  • NEED HELP will give BRAINLY
    5·1 answer
  • What is the value of y?<br> Enter your answer in the box.<br> y = __
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!