Question

Solved the system by substitution.if the system is inconsistent and has no solution,state this .if the system is dependent,write the form of the solution for any real number x.
x+y=9000
0.06x+0.15y=1215

Answer 1

Hint:

y = 9000 - x

Answer 2

Can you explain steps and steps ,so as I can be familiar with it

Answer 3

Substitute the equation Hero gave you into the other equation
0.06x+0.15(9000-x)=1215

solve for x

Answer 4

Ok

Answer 5

x=1214

Answer 6

I divide 1215-0.15

Answer 7

I didnt get it right

Answer 8

I dont think so
0.06x+1350-0.15x=1215

YOU need to subtract from 1215

Answer 9

1215- (0.06x+1350)=135.06

Answer 10

.06x-0.15x=1215-1350

Answer 11

-0.09x=-135

Answer 12

Are you still here

Answer 13

Yes

Answer 14

so you will subtract -0.09-135

Answer 15

-0.09x=-135

Answer 16

I dont think so
0.06x+1350-0.15x=1215

YOU need to subtract from 1215

Answer 17

-0.09x=-135 divide both sides by -0.09

Answer 18

I am confused not good in math

Answer 19

-0.09x/-0.09=-135/-0.09

Answer 20

x=1500

After you have x, substitute back into the equation to get y.
y=9000-1500
y=7500

You can check to see if values work into the other equation. If it doesn't, you've messed up.
check:
0.06(1500)+0.15(7500)=1215
90+1125=1215
1215=1215 our x and y values are right

Answer 21

Does that help... the only way to get better is to keep practicing so you're doing the right thing...asking questions and hanging in there

Answer 22

I will try ,I think I need to start from simplest to complex

Answer 23

is that the final answer to the equation

Answer 24

yes

Answer 25

(1500,7500)

Answer 26

So is the equation system a inconsistent and has no solution or depedent or independent

Answer 27

dependent

Answer 28

what about the first one that you solved

Answer 29

which one was that...I surf the site

Answer 30

this is the one am talking about
9x-6y=19
-x+8y=4

x=8y-4
9(8y-4)-6y=19
72y-36-6y=19
66y=55
y=5/6

Answer 31

So is the equation system a inconsistent and has no solution or depedent or independent

Answer 32

independent there is only one point on a graph where these two lines will intersect