SOLUTION: Rachel just received her transcript showing her grades in five academic classes. In how many ways could she have earned "A's" in at least three of her classes?

Question 428991: Rachel just received her transcript showing her grades in five academic classes. In how many ways could she have earned "A's" in at least three of her classes?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Rachel just received her transcript showing her grades in five academic classes. In how many ways could she have earned "A's" in at least three of her classes?
------
Ans:
5C3 + 5C4+ 5C5
5C3 = (5*4)/(1*2) = 10 ways
(5C4) = 5
(5C5) = 1
Total = 10+5+1 = 16
====================
Cheers,
Stan H.
===========
RELATED QUESTIONS
Rachel just received her transcript showing her grades in five academic classes. In how... (answered by jorel1380)

a professor has five different tasks to assign, one to each of her five assistants. In... (answered by jim_thompson5910)

On her birthday in 2007, Rachel's age is equal to twice the sum of the digits of the... (answered by htmentor,greenestamps)

7TH GRADE MATH Rachel earns 2% simple annual interest on the money she has in her... (answered by Theo)

Suppose a student has earned the following grades on her first four quizzes: 83, 72, 89,... (answered by ankor@dixie-net.com)

Suppose a student has earned the following grades on her first four quizzes: 83, 72, 89,... (answered by MathLover1)

Penny has �640 in her savings The interest is 1.8% p.a. How much will she have in... (answered by Cromlix)

A student needs 6 more classes to complete her degree. If they are all electives, how... (answered by ikleyn)

Rachel is a third of her dads age, in 13 years she will be half her age. Find the age of... (answered by ikleyn,josgarithmetic)