Answer:
$9.10
Step-by-step explanation:
455 ÷ 50 = 9.1. The student tickets cost $9.10. (I think)
Step-by-step explanation:
a = -52 - b / 4
b = -52 - 4a
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Answer:
1200
Explanation:
Order does not matter, if we said xyz order, it would still not make a difference if it was zyx or yzx hence we use the combination formula:
nCr = n! / r! * (n - r)!
where n= total number of items
r= number of items chosen at a time
Combinations are used when the order of events do not matter in calculating the outcome.
We calculate using the formula:
(30×20×12)÷3!=1200
There are therefore 1200 ways for the three distinct items to not be in same row or column
