Hurry brainliest for correct answer in 2018, there is an average of 45.6 people per 3 square kilometers in the united states. how many people live in 1 square kilometer?

15.2

Step-by-step explanation:

3/45.6 = 1/x        *Cross multiply.

3x = 45.6         *Divide both sides by 3.

x = 15.2

Hi!

We will solve this using ratios, like this:

45,6 people per 3 square kilometers

x people per 1 square kilometer

x = (45,6*1)/3

x = 45,6/3

x = 15,2

Hope this helps!

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w