8z − 4 = 7z
move 8z to the other side
sign changes from +8z to -8z
8z-8z-4=7z-8z
-4= 7z-8z
-4= -z
mutiply both sides by -1 to get +z
(-4)(-1)= (-z)(-1)
Answer:
z= 4
This is the answer (−1.550510257)
Okay so this problem basically is saying if the value is 90000 and per every 1000 she has to pay 31$ in tax
So first divide $90,000 by $1,000 you should get 90
Now you can do 90 times $31 to find how much tax she will have to pay which equals $2,790 tax total
Answer:
equation: y=35x+1200
a) the rate of change is 35.
b) 1200.
c) The Independent Variable is amount of students per year.
d) The Dependent Variable is the year
I'm not sure about the dependent varaliable, so don't take my word.
