Answer: 455 possible outcomes
Step-by-step explanation:
If there are 3 positions and 15 candidates, you multiply 15 by 14, then by 13 to get the number of possible outcomes times 6.
This is because once a candidate gets a position, there will be 1 less candidate without a position each time.
15 * 14 * 13 = 2,730
Now, since there are only 3 positions, the first position has 3 possible ways, the second position has 2 possible ways, and the third position has 1 possible way.
3 * 2 * 1 = 6
2,730 / 6 = 455
First find the unit rate. Do 17.5/2.5 and you get 7. Next just multiply that by 10 and voila. It takes her 70 minutes to run the whole race.
Answer:
dam
mmnnnn that aint 2nd grade
Step-by-step explanation:
But I think it's a fraction because it's expressed as: "ONe number OVER another"
If the matrix is of 2 by 2 then we can find the determinant of the matrix.
Then (ad - bc ) gives you the determinant of the matrix.
For example,
= (2)(-2) - (1)(4)
= - 4 - 4
= -8
