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Mathematics 21 Online
Comerpickles:

Anyone here good at Math?

ThewaffleBRO:

no

Jbaena1:

hewl nawh

Comerpickles:

Well, thanks for the honesty

EndersWorld:

Depends.

Comerpickles:

Well its Density

EndersWorld:

Show me what I'm working with hon.

Comerpickles:

One second

Comerpickles:

Here The population of a city is 1,503,049. The land area of the city is 181.5 km². What is the population density of the city? Enter your answer in the box. Round your answer to the nearest whole number.

EndersWorld:

You want the answer or want me to help you work through it?

EndersWorld:

Density= number of people/ land

EndersWorld:

So ?=1,503,049/181.5

EndersWorld:

Or, 8,281.26171, so your answer would be Density=8,281

Comerpickles:

Thanks :)

Comerpickles:

Sorry for the late response

EndersWorld:

Of course

Comerpickles:

Thanks though. A biologist is researching the population density of salamanders near a pond. The biologist counts 152 salamanders within a radius of 12 mi of the pond. What is the population density of salamanders? Enter your answer in the box. Use 3.14 for pi and round only your final answer to the nearest whole number.

Comerpickles:

After this, just 1 more

EndersWorld:

That would be 151/12 or 12.58, so your answer should be 13

Comerpickles:

Thank you

Comerpickles:

Last but not least A block of sugar maple wood has a mass of 82.8 g and density of 0.69 ​ g/cm3 ​. The block is a rectangular prism with a length of 5 cm and a width of 4 cm. What is the height of the block of sugar maple? Enter your answer in the box.

EndersWorld:

6 cm.

Comerpickles:

Thank you so much

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