SOLUTION: Show all work. Mary purchased a package of 20 different plants, but she only needed 16 plants for planting. In how many ways can she select the 20 plants from the package to be pl

Algebra ->  Probability-and-statistics -> SOLUTION: Show all work. Mary purchased a package of 20 different plants, but she only needed 16 plants for planting. In how many ways can she select the 20 plants from the package to be pl      Log On


   

Question 424563: Show all work. Mary purchased a package of 20 different plants, but she only needed 16 plants for planting. In how many ways can she select the 20 plants from the package to be planted?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Show all work. Mary purchased a package of 20 different plants, but she only needed 16 plants for planting. In how many ways can she select the 20 plants from the package to be planted?
---
Note: # of ways of selecting 16 is the
same as # of ways of not selecting 4.
----
20C16 = 20C4 = (20*19*18*17)/(1*2*3*4) = 4845
=================
Cheers,
Stan H.