8/18/2019 Density Practice Problems

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Density Practice Unit 9: 2D Modeling Name: _____________________

1.The population density of Lima is 2857.1 people per sq. mile. If exactly 38,771

people lie in the community. !o" many square miles is the community# $ound to

the nearest hundredth.

2. % dairy farm has &'' co"s in their mil(in) herd that collectiely produce 8',25'

pounds of mil( per square mile of )ra*in) pasture, for a total of 3,852,''' pounds of 

mil( products. !o" many square miles do these co"s )et to roam around on#

 

8/18/2019 Density Practice Problems

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Density Practice Unit 9: 2D Modeling Name: _____________________

3. +ome local farmers are experimentin) "ith ne" arieties of corn to see if they

can increase their crop yield per acre. They planted 357 acres "ith a)s-o-corn and

collected a total of &,&15 /ushels. They also planted 02& acres "ith ornaco/,

"hich yielded a total of 78,81' /ushels. hich type of ariety yielded more per acre

and /y "hat percenta)e more did it yield#

0. i))/y oee "ants to open ne" locations either do"nto"n or on the eastside of 

Lima. They "ill open a ne" location "hereer the ratio of existin) coee shops per

person is less than '.'1. The population density of the 15-city-/loc( do"nto"n area

is 175 people per city /loc(, /ut there are already 3' coee shops in the area. The

population of the 1'-/loc( eastside of to"n is 125 people per /loc(, and there are 0

coee shops around. here, if any"here, should they open their ne" location4s#