Answer:
$ 50
Step-by-step explanation:
sp = mp - discount percent of mp
or, 42 = mp - 16/100 * mp
or, 42 = 84 mp / 100
so, mp = 50
Answer:
-0.43
Step-by-step explanation:
100/-43
First of all, we need to know what a function is.
A function is a binary relation between two sets that
4x+y= x
Move all x term to left side
4x-x+y=0
Subtract 4x from 3x
3x+y=0
Move y term to right side
3x= -y
Divide both sides by 3
X= -y/3
Ok so if it's
4x+y= z solve for x
Move y to right side
4x= -y +z
Now divide both by 4 to get x alone
X= -y/4 + z/4
