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MArishka [77]
2 years ago
12

In 2016, the city of Rio de Janeiro had a population density of 5377 people/km^2

Mathematics
2 answers:
Masteriza [31]2 years ago
8 0

Answer:

5377 \frac{people}{km^2}

And we want to provide this population density in \frac{people}{m^2}

We know that 1km =1000m, so then we can use this fact and we can do the conversion:

5377 \frac{people}{km^2} *\frac{1km^2}{(1000m)^2} = 0.005377 \frac{people}{m^2}

Step-by-step explanation:

For this cae we have the following population density:

5377 \frac{people}{km^2}

And we want to provide this population density in \frac{people}{m^2}

We know that 1km =1000m, so then we can use this fact and we can do the conversion:

5377 \frac{people}{km^2} *\frac{1km^2}{(1000m)^2} = 0.005377 \frac{people}{m^2}

Allushta [10]2 years ago
7 0

Answer: The population density was 0.005377  people per square meter.

Step-by-step explanation:

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If an angle is acute, then the measure of its complement must be greater than the measure of its
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David inherited some money from his uncle. He invested half of the money with Bernie
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Given:
Let x be the whole amount inherited.
1/2 * x - invested with Bernie Madoff
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1/8 * x - lost in casino
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LCM: 
2: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24
3: 3, 6, 9, 12, 15, 18, 21, 24
8: 8, 16, 24, 

   x * 24/24 = 24x / 24
x/2 * 12/12 = 12x / 24
x/3 *   8/8   = 8x / 24
x/8 *   3/3   = 3x / 24
40,000 * 24/24 = 960,000 / 24

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2 years ago
Can someone please help me with this question
zlopas [31]

Answer:

15 kilometers

Step-by-step explanation:

So we know:

For 4 days she runs 1500 meters each day.

For 3 days she runs 3 kilometers each day.

First off, lets convert 1500 meters into kilometers.

There are 1000 meters in a kilometer, so pluggin in 1500 meters:

1500/1000 = 1.5

So for 4 days she runs 1.5 kilometers each day.

Now, to find the total kilometers, we must find multiply the 1.5 kilometers by the 4 days, the 3 kilometers by the 3 days, then add those two together.

So lets do this:

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Next we have:

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So she ran 9 kilometers in the last 3 days.

Now finally add them together:

6 + 9 = 15

So she ran a total of 15 kilometers.

Hope this helps!

7 0
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