At a benefit concert, nine bands have volunteered to perform but there is only enough time for six of the bands to play. How ma
ny lineups are possible?
1 answer:
You have to calculate how many ways you can select six things (r)
from a set of 9 things (n). (See attached formula).
9! / 6! * (3!) =
9*8*7 * 6! / 6! * 3! =
9*8*7 / 3! =
3 * 4 * 7 = 84 lineups
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Answer: D
Explanation: if you round it will be Volume ≈ 65.42 units^3
Simplified Ratio: <u>3 : 2</u>
Birds / Cups
6 / 4
9 / 6
12 / 8
15 / 10
18 / 12
You need 12 cups of birdseed if you're expecting 18 birds this month.
A: 1:1 unless they want you to count both arms then it would be B: 2:2
217x+99=25
217x=25-99
217x= -74
X=-74/217
(d) 18/48
That’s the only value that’s not negative compared to the rest
