SOLUTION: i know the formula for permutations, but i don't know how to solve this problem. please help me!
joslyn's dance group consists of 8 girls and 5 boys. 4 people are to be chosen a
Algebra.Com
Question 39197: i know the formula for permutations, but i don't know how to solve this problem. please help me!
joslyn's dance group consists of 8 girls and 5 boys. 4 people are to be chosen at random to perform at the next recital. if the group of performers must include at least 2 girls, in how many ways can the performers be chosen?
Answer by Nate(3500) (Show Source): You can put this solution on YOUR website!
C(8,2)C(5,2)+C(8,3)C(5,1)+C(8,4)C(5,0)
(28)(10)+(56)(5)+(70)(1)
280 + 280 + 70
630
RELATED QUESTIONS
Dear math teacher,
I am having diffulties with the following problem:
Find the... (answered by stanbon)
I wasn't sure where to put this because my text is Inequalities, Permutations, and... (answered by longjonsilver)
Can you help me with this problem. I don't know how to solve it.... (answered by CubeyThePenguin)
2x2-7x+1=0
I know that the left side of the equation must =-1 but I don’t know how to... (answered by robertb)
Here’s the problem:
For a car renting for $15 per day plus $.10 per mile, the cost for (answered by stanbon)
Could you please help me with this Calculus problem? I am finding this problem hard to... (answered by math_helper,ikleyn,greenestamps)
Hello, I am just starting to learn Calculus and am stuck with this problem. Would really... (answered by math_tutor2020,ikleyn)
Hi, could you please help me on how to solve this problem?
Determine the area of the... (answered by adamchapman)
Jaxson bought snacks for his team's practice. He bought a bag of oranges for $2.91 and a... (answered by Boreal)