X-y=34
x+y=338
We can use elimination in this problem.
2x=372
x=186
186+y=338
y=338-186
y=152
9 + 15 / 5 x 13 =
9 + 3 x 13 =
9 + 39 = 48
If you are considering P of the permutation and combination. Then simply pit the figure 6P5 in calculator and your answer will be 720. Or if not calculator then the formula is P(n,r)= n(factorial)/ (n-r)factorial.
83.33 should be the right answer.
Hope it helps.
