Answer (Respuesta): B
3^2 (9) + 1 = 10 y 2^2 (4) + 1 = 5 por eso 10 - 5 = 5
The population density is approximately 4 people per square mile
<h3>Calculating Population Density </h3>
From the question, we are to determine the population density
Population density is given by the formula,
Number of people in the town = 12620 people
Now, we will determine the land area of the town
From the given shape,
Land area of the town = (60 × 65) - (25 ×40)
Land area of the town = 3900 - 1000
Land area of the town = 2900 square mile
∴ Population density = 
Population density = 4.3517
Population density ≅ 4 people per square mile
Hence, the population density is approximately 4 people per square mile
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Answer:
19 coins
Step-by-step explanation:
We know that mean is the sum of all the elements divided by the number of elements there are: m = t/n, where m is the mean, t is the total sum, and n is the number of elements.
Here, we are given the mean number of coins for all 27 + 18 = 45 children is 16, so m = 16 and n = 45. Then:
m = t/n
16 = t/45
t = 720
This t means that the total number of coins that all the boys and girls have is 720 coins.
Now, we also know the mean number of coins for the boys only, which is 14. Since there are 27 boys, then:
m = t/n
14 = t/27
t = 378
This t means the total number of coins all the boys have.
Subtracting 378 from 720, we get 342, which is the total number of coins the girls have. We also know there are 18 girls, so:
m = t/n
m = 342 / 18 = 19
Thus, the mean is 19 coins.
Because it's 30 percent, comes from the Latin per centum which literally means for every one hundred. So the discount is 30 for every one hundred.
When using the distributive law
answer is: 45x-27
