SOLUTION: Show all work. Mary purchased a package of 18 different plants, but she only needed 15 plants for planting. In how many ways can she select the 15 plants from the package to be pl

Algebra ->  Probability-and-statistics -> SOLUTION: Show all work. Mary purchased a package of 18 different plants, but she only needed 15 plants for planting. In how many ways can she select the 15 plants from the package to be pl      Log On


   

Question 457521: Show all work. Mary purchased a package of 18 different plants, but she only needed 15 plants for planting. In how many ways can she select the 15 plants from the package to be planted?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Hint: Consider selecting 3 plants (from 18) and seeing how many ways there are to select 3 plants. This will equal the number of ways to select 15 plants (since 15+3 = 18). Note: this is assuming that order does not matter.