We can tell it’s not a permutation because it’s picking two people. Order doesn’t matter.
The number of total possible groups of men is 9 C 2 = 9!/((9-2)!(2!)) = 36
The number of total possible groups of women is 11 C 2 = 11!/((11-2)!(2!)) = 55
55 * 36 = 1980 different groups in the committee
-25 would be the answer to this problem
Given:
Total amount invested = $9,000
interest rates = 4% and 6%
Let x be the part of 9,000.
Note that annual return on each investment is the same.
0.04x = 0.06(9,000 - x)
0.04x = 540 - 0.06x
0.04x + 0.06x = 540
0.10x = 540
x = 540/0.10
x = 5,400
0.04x = 0.06(9,000 - x)
0.04(5,400) = 0.06(9,000 - 5,400)
216 = 0.06(3,600)
216 = 216
total interest for the year : 216 + 216 = 432
Interest = pricipal * interest rate * term
432 = 9,000 * interest rate * 1 yr
432/9,000 = interest rate
0.048 = interest rate
Interest rate would be 4.8% to get the same interest from the whole 9,000.
< is your answer 6 is less than 16
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Answer:
B
Step-by-step explanation:
Because all of these letters are distinct, the total number of ways to draw them is 4!, or 24.
Another way you can do this is by discerning the number of ways the individual numbers can be drawn. In the beginning, there are 4 letters to pick. If you pick a letter out, you now have 3 letters to pick. If you pick a letter out, you now have 2 letters to pick. After, you only have 1 letter to pick. 4 * 3 * 2 * 1 = 24.