Register

For a class, Mrs. Hawk brought in 7 different packages of colored pens. The teacher randomly selects 2 packages. How many different combinations are there?​

For a class, Mrs. Hawk brought in 7 different packages of colored pens. The teacher randomly selects 2 packages. How many different combinations are there?​
2.9k views
1 vote
For a class, Mrs. Hawk brought

in 7 different packages of
colored pens. The teacher
randomly selects 2 packages.
How many different
combinations are there?​

User Rodent
by
8.1k points

2 Answers

3 votes

Answer:

14

Explanation:

7x2=14

User Suneel Kumar
by
7.7k points
2 votes
7C2 = 7!/[2!(7-2)!] = 7!/(2x5!) = 7x6/2 = 21
Therefore there are 21 possible combinations.
User Stefan Wallin
by
9.1k points
← Prev Question Next Question →

No related questions found

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories

Other Questions

How do you can you solve this problem 37 + y = 87; y =
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Link Copied!