Mathematics: Im struggling please help

Im struggling please help - id14357450, jackie6852

nculberson6

17.09.2021

Hey 2923928 !

Answer: The second choice

$\dashrightarrow \: { \tt{ \frac{12x}{3 {x}^{2} } = \frac{12}{3x} }} \\ \\ \dashrightarrow \: { \tt{ \frac{4}{x} }}$

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barnhill4755

17.09.2021

Step-by-step explanation:

$\frac{12x}{3 {x}^{2} } \\$

First divide 12 by 3

$\frac{12}{3} = 4$

then divide x by x^2

$\frac{x}{ {x}^{2} } \\ \frac{ {x}^{1} }{ {x}^{2} } \\ {x}^{1 - 2} \\ {x}^{ - 1}$

now you can write the answer like this

$4 {x}^{ - 1}$

Hope this helps you :-)

Let me know if you another questions :-)

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rachelsweeney10

22.10.2021

Indonesia has the highest Population Density (1045.7935 people per Km square)

Ghana has the least Population Density (77.20611 people per Kilometre Square)

Step-by-step explanation:

Population density is the per unit value of People living in a particular geographical area to the land mass.

Population density = Total Population / Land mass per square

Indonesia =203,479,000/1,904,569

=1045.7935people per Km square

Denmark= 5,248,000/42,077

=124.7237 people per Kilometre Square

Ghana=18,339,000/237,533

=77.20611 people per Kilometre Square

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