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Aleksandr [31]
2 years ago
14

20. 7/9+2/6 A.3/9 B.4/9 C.7/18 D.5/15​

Mathematics
1 answer:
zheka24 [161]2 years ago
5 0

Answer:

i dont know why but it has to be 10/9 but there is no this option

Step-by-step explanation:

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I got letter C as my answer, is that correct?
lisov135 [29]
Yes it is C if you do the math and simplify it that is what you’ll get
4 0
3 years ago
Circle towns limit form a perfectly circular shape that has a population of 20000 in the population density of 480 people per sq
Alex

Answer:

D =\frac{P}{\pi X^2}

And solving for the radius we got:

X = \sqrt{\frac{P}{\pi D}}

And replacing the data given we got:

X = \sqrt{\frac{480 \frac{people}{km^2}}{\pi *20000 people}}= 0.0874Km

And this value converted to meters is X = 87.40 m

Step-by-step explanation:

For this case we know the population size P = 20000 and we also know the population density D = 480 \frac{people}{km^2}

We can assume that the area is a circle. We also know that the formula for the population density is given by:

D= \frac{P}{A}

Where P represent the number of people and A the area. Since we are assuming a circle then the area is given by:

A = \pi X^2

With X the radius of the circle

And then the populationd density become:

D =\frac{P}{\pi X^2}

And solving for the radius we got:

X = \sqrt{\frac{P}{\pi D}}

And replacing the data given we got:

X = \sqrt{\frac{480 \frac{people}{km^2}}{\pi *20000 people}}= 0.0874Km

And this value converted to meters is X = 87.40 m

6 0
3 years ago
48:PLEASE HELP Find the x-intercept of -x+2y=22
ella [17]

Answer:

-22

Step-by-step explanation:

set y equal to zero and solve like a regular singular variable equation

3 0
3 years ago
Solve for x.<br><br> -3x = 15
castortr0y [4]

Answer:

x = -5

Step-by-step explanation:

1.  Divide both sides by -3

2. Simplify 15/-3 to 5

( 15 divided by -3 is -5)  

5 0
2 years ago
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Eddi Din [679]
The average speed = (speed 1 + speed 2)/2
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the average speed = (8 + 5)/2
the average speed = 13/2
the average speed = 6.5 km/minute
8 0
3 years ago
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