Answer:
Step-by-step explanation:
Answer:
1/4
Step-by-step explanation:
Slope of a line can be found if given two points by using the formula 
where 
are points on the line.
However, I like to line up the points vertically and subtract then put 2nd difference over 1st difference.
Like this:
( 3 , 3 )
-( -1 , 2 )
---------------------
4 1
So the slope is 1/4.
Answer:
20-6=14 students not in math club
14:20
if it wants you to simplify it then: 7:10
Step-by-step explanation:
I hope this helps :)
20/100=x/321
20 x 321=100x
20 x 321=6420
6420/100=64.2
Answer:
Angle 4 = 135, angle 5 = 45
Step-by-step explanation:
Consecutive interior angles are supplementary, therefore angle 5 + angle 8 = 180 degrees. Since the complement of 5 is the supplement of 4, we can write the system of equations.
180 - x = 90 - y or -x + y - 90 - 180 or -x + y = -90 or x - y = 90
x + y = 180
x - y = 90
Where angle 4 is x and angle 5 is y.
y = 180 - x
x - (180 - x) = 90
x - 180 + x =90
x + x = 270
2x = 270
x = 135
By plugging that in to an equation we can solve for y.
y = 45
