The answer to the question they gave you is D
Slope formula:
y2-y1
-------
x2-x1
48)
1-3 -2
---- = ----
-2-4 -6
So the slope of MN is 1/3
5.231.281 : 70.323 = 74,3 people per square mile
or 74 people per square mile
easy peasy.
-84/14= -6
feel free to add me as a friend I am very good at math and am willing to help.
20x+5y=120
10x+7.5y=80 multiply this one by 2
___________
20x+5y=120
20x+15y=160 subtract
___________
-10y=-40 divide both sides by -10
____________
y=4
20x+5(4)=120 plug 4 in for y in the first equation
20x+20=120 multiply
20x=100 subtract
x=5 divide to find x
