Answer:
6.5
Step-by-step explanation:
9x=58.50
This equation is telling us that she bought 9 tickets at x cost each and the total was 58.50
Simplify the equation to solve for x. Divide by 9 on both sides.
⁹ˣ/₉ = ⁵⁸·⁵⁰/⁹
x=6.5
Answer:
12???? I think
Step-by-step explanation:
6 times 4 divided by 2 = 12
Answer:
The standard error of the proportion is 0.0485.
Step-by-step explanation:
The standard error of a proportion p in a sample of size n is given by the following formula:
![SE_{m} = \sqrt{\frac{p(1-p)}{n}}](https://tex.z-dn.net/?f=SE_%7Bm%7D%20%3D%20%5Csqrt%7B%5Cfrac%7Bp%281-p%29%7D%7Bn%7D%7D)
In this problem, we have that:
![n = 100, p = 0.38](https://tex.z-dn.net/?f=n%20%3D%20100%2C%20p%20%3D%200.38)
![SE_{m} = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.38*0.62}{100}} = 0.0485](https://tex.z-dn.net/?f=SE_%7Bm%7D%20%3D%20%5Csqrt%7B%5Cfrac%7Bp%281-p%29%7D%7Bn%7D%7D%20%3D%20%5Csqrt%7B%5Cfrac%7B0.38%2A0.62%7D%7B100%7D%7D%20%3D%200.0485)
The standard error of the proportion is 0.0485.
3n+4=32÷2
3n+4=16
subtract 4 from both sides
3n=12
divide both sides by 3
n=4
10 2/5 is the number......