If F(3) then 3=x. So all you would do is substitute 3 in for x
50*x=80 (x=percent in decimal form)
x=1.6 (divide both sides by 50)
Doubke check:
50*1.6=80
80=80
Convert 1.6 into a percent:
1.6 -> 160%
The angles are <span>supplementary
</span>
7x + x + 20 = 180
8x = 160
x = 20
The final step in solving the inequality=
-6<-2x
-2x>-6
x<3
