# Math

How many ways can 3 students be chosen from a class of 20 to represent their class at a banquet? (1 point)
6,840
3,420
1,140
2,280
15. You and 3 friends go to a concert. In how many different ways can you sit in the assigned seats? (1 point)
a.6 ways
b.12 ways
c.24 ways
d.10 ways
16. You own 5 pairs of jeans and want to take 2 of them on vacation. In how many ways can you choose 2 pairs of jeans? (1 point)
a.10 ways
b.15 ways
c.4 ways
d.20 ways

1. 👍 0
2. 👎 0
3. 👁 2,392
1. i think the answers are
b
c
d

1. 👍 1
2. 👎 0
2. 1st one:
choose 3 from 20
= C(20,3) = 1140

15.
Assigned seats ---> order matters, so permution of 4
= 4x3x2x1 = 24
(you were right)

16.
choose 2 from 5
= C(5,2) = 10
(the order you select your jeans does not matter)

1. 👍 1
2. 👎 0

1. 👍 0
2. 👎 0
4. My question was: "How many students can be chosen from a class of 16 to represent their class at a banquet?"
If you could give me the answer, I'd be thankful.

1. 👍 1
2. 👎 1
5. Wrong wrong and somewhat wrong!

1. 👍 1
2. 👎 0

## Similar Questions

1. ### math

The question is there are 18 students in a class. Each day the teacher randomly selects three students to assist in a game: a leader, a recorder, and a timekeeper. In how many possible ways can the jobs be assigned? so first is 1

asked by b8 on May 26, 2014
2. ### math help me

Solve: 6C3 (1 point) 120 720 20 240 2. Which is not a combination? (1 point) choosing 3 toppings for your pizza lining 3 students up in a row choosing 2 desserts from a tray of 10 choosing 5 students to represent a class of 30 3.

3. ### math

Find the number of different ways that an instructor can choose 7 students from a class of 35 students for a field trip.

asked by em on August 5, 2019
4. ### math

In a certain Algebra 2 class of 25 students, 6 of them play basketball and 12 of them play baseball. There are 11 students who play neither sport. What is the probability that a student chosen randomly from the class plays both

asked by Anonymous on April 28, 2020
5. ### Math

Typically, 10% of students make a D on their tests, 60% make a C on their test, and 30% make an A. Mrs. Smith uses a random-number table to find the experimental probability that of 5 students', at least 3 will make a C. The digit

asked by HELP!:) on June 9, 2015
1. ### Math

When a class took a math test, 15% of the class failed, 25% made some mistakes (but didn’t fail), and 24 students got perfect scores. How many students were in the class?

asked by Sara on February 23, 2017

1. the probability of a basketball player hitting a foul shot is 1/3. how many shots would you expect her to make in 90 attempts. a. 30 b. 60 c. 3 d. 45 my answer is b? 2. simplify 8P3. a. 42 b. 336 c. 40,432 d. 56 my answer is d?

asked by Anon on May 3, 2016
3. ### math

In a certain Algebra 2 class of 26 students, 7 of them play basketball and 13 of them play baseball. There are 10 students who play neither sport. What is the probability that a student chosen randomly from the class plays both

asked by misha on May 24, 2020
4. ### maths

each of the students in a class writes a dirrerent 2 digit number on the whiteboard. the teacher claims that no matter what the students write, there will be at least three numbers on the whiteboard whose digits have the same sum.

asked by Emma on July 7, 2007
5. ### Algebra

1)More than 450 students went on a field trip. Ten buses were filled and 5 more students traveled in a car. a) Write an inequality to represent the situation. Be sure to define your variable. b) Solve the inequality to find the

asked by Elizabeth on September 17, 2016