Answer:
Approximately 338,000 people live in that area.
Step-by-step explanation:
In order to solve this problem we first need to find the area of the region, since it's delimited by a 7 miles radius, then we can assume it's a circular region. The area of the circle can be calculated by the following formula:
area = pi*r² = 3.14*(7)² = 153.86 miles²
Since the region has a density of 2200 people per square mile and the density is given by the formula:
density = number of people / area
We can find the number of people living in the region by doing:
number of people = density*area
Applying the data from the problem:
number of people = 2200*(153.86) = 338,492 people
Answer:
C
24Step-by-step explanation:
Trust me on this one.
Answer:
42%
Step-by-step explanation:
Lets assume there were a total of 100 people (it will make calculations much easier).
Given, 30% men and 70% women, so we can say:
30% of 100 = 30 Men
70% of 100 = 70 Women
OF THE WOMEN SURVEYED, 60% of those prefer SUV. So,
60% of 70 (women) prefer SUV,
60/100 * 70 = 0.6 * 70 = 42 Women prefer SUV
We need probability of Woman prefering SUV from TOTAL, so that would make it:
42/100 = 0.42
Converting to percentage:
0.42 * 100 = 42%
Answer:
240
Step-by-step explanation:
you have to divide 1,920 by 8
Answer:
![35 + 4x > 67](https://tex.z-dn.net/?f=35%20%2B%204x%20%3E%2067)
To reach her fitness goal, she needs to run for more than 8 days.
Step-by-step explanation:
She has already run 35 miles and runs 4 miles per day:
This means that after x days, the distance she will have run is:
![D(x) = 35 + 4x](https://tex.z-dn.net/?f=D%28x%29%20%3D%2035%20%2B%204x)
Tammy must run more than 67 miles total to reach her fitness goals.
This means that:
![D(x) > 67](https://tex.z-dn.net/?f=D%28x%29%20%3E%2067)
![35 + 4x > 67](https://tex.z-dn.net/?f=35%20%2B%204x%20%3E%2067)
The inequality is:
![35 + 4x > 67](https://tex.z-dn.net/?f=35%20%2B%204x%20%3E%2067)
Solution:
![4x > 32](https://tex.z-dn.net/?f=4x%20%3E%2032)
![x > \frac{32}{4}](https://tex.z-dn.net/?f=x%20%3E%20%5Cfrac%7B32%7D%7B4%7D)
![x > 8](https://tex.z-dn.net/?f=x%20%3E%208)
To reach her fitness goal, she needs to run for more than 8 days.