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olchik [2.2K]
2 years ago
12

calculate the population density of a city that occupies 2,968.7 sq.miles and has 302,143 people. Round to the nearest person pe

r sq.mi.
Mathematics
1 answer:
Ad libitum [116K]2 years ago
4 0

302,143/2,968.7 = 101.776198336 ≈ 102 people/Sq. Mile

1. Divide the number of people by the area

2. Round to the the nearest person per Sq mile (if the number behind the number you want to round to is bigger or equal than 5 you increase the number you want to round to i. e. 2.5 ≈ 3, 2.3 ≈ 2, 1,23456 ≈ 1,235 if rounding to the third decimal point)

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Solve for X. Show your work<br><br> 2x + 6 = x - 5
irina1246 [14]

2x + 6 = x - 5

2x - x = -5 - 6

x = -11 ← the end

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2 years ago
Felicity put down 800 on a used car. She took out a loan to pay off the balance of the cost of the car. Her monthly payment will
jenyasd209 [6]
She would have paid 1,575 dollars plus the 800 down payment. The total would be $2,375.
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3 years ago
What is an equation of the line that passes through the points (-6, -2) and
den301095 [7]

Answer:

The equation of line is: \mathbf{4x-3y=-18}

Step-by-step explanation:

We need to find an equation of the line that passes through the points (-6, -2) and  (-3, 2)?

The equation of line in slope-intercept form is: y=mx+b

where m is slope and b is y-intercept.

We need to find slope and y-intercept.

Finding Slope

Slope can be found using formula: Slope=\frac{y_2-y_1}{x_2-x_1}

We have x_1=-6,y_1=-2, x_2=-3, y_2=2

Putting values and finding slope

Slope=\frac{2-(-2)}{-3-(-6)}\\Slope=\frac{2+2}{-3+6} \\Slope=\frac{4}{3}

So, we get slope: m=\frac{4}{3}

Finding y-intercept

Using point (-6,-2) and slope m=\frac{4}{3} we can find y-intercept

y=mx+b\\-2=\frac{4}{3}(-6)+b\\-2=4(-2)+b\\-2=-8+b\\b=-2+8\\b=6

So, we get y-intercept b= 6

Equation of required line

The equation of required line having slope m=\frac{4}{3} and y-intercept b = 6 is

y=mx+b\\y=\frac{4}{3}x+6

Now transforming in fully reduced form:

y=\frac{4x+6*3}{3} \\y=\frac{4x+18}{3} \\3y=4x+18\\4x-3y=-18

So, the equation of line is: \mathbf{4x-3y=-18}

6 0
2 years ago
If f(x)= (3x+7)^2, then f(1) = ?
Crank
To find f(1), substitute 1 for x.

f(1) = (3(1)+7)²
f(1) = (3+7)²
f(1) = 10²
f(1) = 100
3 0
3 years ago
Read 2 more answers
How do I place 2/3 times 7 into a whole number?
lorasvet [3.4K]

Answer: round it up to 5

Step-by-step explanation:

2/3 time 7 = 14/3

14/3= 4.6

if the number after the decimal is above 5 you may round up

6 0
3 years ago
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