Question

How many solutions (using only nonnegative integers) are there to the following equation?
x1 + x2 + x3 + x4 + x5 = 36

Answer 1

so, n = 5
r = 36

Answer 2

C(n + r-1, r) =

Answer 3

I got this far this is what i have.
c(40, 36)
c(40*39*38*37)(4*3*2*1)
from here on out I don't know how to solve it

Answer 4

C(40, 36) = (40*39*38*37) / (4*3*2*1)
=

Answer 5

now, cancel common factors,

Answer 6

= 10 * 13 * 19 * 37

Answer 7

[ you can use a calculator now ]

Answer 8

91390 Thanx it was the confusing part thanx