3x +2= 5x
-3x
2= 2x
/2
1= x
So first I got all the x’s on one side and the whole numbers on the other side. So we had 2 on one side and 2x on the other. From there we divided by the number of x’s which was 2 so we can get one x only. So 2/2= 1 so x =1
Answer:
0.0014 = 0.14% probability that Ashley, Bob, Claire, and Daniel will be chosen.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
The order in which the students are chosen is not important, so the combinations formula is used to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.
![C_{n,x} = \frac{n!}{x!(n-x)!}](https://tex.z-dn.net/?f=C_%7Bn%2Cx%7D%20%3D%20%5Cfrac%7Bn%21%7D%7Bx%21%28n-x%29%21%7D)
Desired outcomes:
4 students from a set of 4(Ashley, Bob, Claire, and Daniel). So
![D = C_{4,4} = \frac{4!}{4!(4-4)!} = 1](https://tex.z-dn.net/?f=D%20%3D%20C_%7B4%2C4%7D%20%3D%20%5Cfrac%7B4%21%7D%7B4%21%284-4%29%21%7D%20%3D%201)
Total outcomes:
4 students from a set of 13(number of students in the lottery). So
![T = C_{13,4} = \frac{13!}{4!(13-4)!} = 715](https://tex.z-dn.net/?f=T%20%3D%20C_%7B13%2C4%7D%20%3D%20%5Cfrac%7B13%21%7D%7B4%21%2813-4%29%21%7D%20%3D%20715)
Probability:
![p = \frac{D}{T} = \frac{1}{715} = 0.0014](https://tex.z-dn.net/?f=p%20%3D%20%5Cfrac%7BD%7D%7BT%7D%20%3D%20%5Cfrac%7B1%7D%7B715%7D%20%3D%200.0014)
0.0014 = 0.14% probability that Ashley, Bob, Claire, and Daniel will be chosen.
748 inches... You do know there's a meter to inches converter online, right?
This is 10th grade I’m in regular 8th and can do this w no problem
Answer:
6 got off at NJ
Step-by-step explanation:
if u write an equation it would be 44-x+2x=50. -x+2x=x so the equation would now be 44+x=50. If you subtract both sides by 44, it would be x=6. x was the number of people that got off at NJ so 6 people got off there.
Hope this helps!