Question

Choose the example that correctly shows the mean population density of a region.

678 people per cubic meter
678 cubic meter per number of people
678 people per square mile
678 square mile per people

Answer 1

@iambatman can you help me please

Answer 2

whats your thoughts?

Answer 3

i think i have to use this formula

population density= number of individuals/unit area ??
@amistre64

Answer 4

thats acceptable yes.

Answer 5

so people per area ...

Answer 6

square mile? @amistre64

Answer 7

yes, area is generally a squared unit of measure.

people per square mile

Answer 8

thanks! can you help me with another one please? @amistre64

Answer 9

maybe one more

Answer 10

okay so the question is:
The density of aluminum is 2.375 grams per cubic centimeter. Find the volume of a portion of a sheet of aluminum that has a mass of 0.78 kilograms?

and my options are:
3.04 cubic centimeters
1.8525 cubic centimeters
328.4 cubic centimeters
0.00304 cubic centimeters @amistre64

Answer 11

what is a good formula for density?

Answer 12

density=mass/volume @amistre64

Answer 13

good,

then volume is just mass/density right?

Answer 14

oh wow I'm so dumb lol I'm just suppose to plug in and divide right? @amistre64

Answer 15

yep, the answers are in grams tho so don tlet the decimal fool ya

Answer 16

.78/2.375

or convert to grams

Answer 17

i got 328.4 cubic centimeters @amistre64