Ask your own question, for FREE!
Mathematics 7 Online
OpenStudy (diana.xl):

Check my answer?

OpenStudy (diana.xl):

@Directrix

Directrix (directrix):

Part A is to write a system of linear equations. You did not do that.

Directrix (directrix):

x + y = 8 12x + 10y = 86 Those two equations make up the system and both are require in the answer region.

OpenStudy (diana.xl):

oh ok. so other than that the rest are correct?

Directrix (directrix):

No. The work for part B cannot be correct because it did not come from solving the system of equations.

Directrix (directrix):

The system has to be solved by elimination which means eliminating a variable. x + y = 8 12x + 10y = 86 ----------------

Directrix (directrix):

@Diana.xL Are you still live in this thread? x + y = 8 12x + 10y = 86 ---------------

OpenStudy (diana.xl):

is this correct? x + y = 8 12x + 10y = 86 ---------------- (x + y = 8)(-10) 12x + 10y = 86 ------------------- -10x - 10y = -80 12x + 10y = 86 ----------------- 2x = 6 --------------- x = 3 ---------------- x + y = 8 3 + y = 8 -------------- y = 5

Directrix (directrix):

Yes.

Directrix (directrix):

The answers are what you had already typed in but the work you typed in did not support the answers. So, go back and change both parts of that question.

Directrix (directrix):

Looks good to me. Did you correct part A by entering the 2 equations?

OpenStudy (diana.xl):

yep :) thnx!

Directrix (directrix):

You are welcome.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
Arriyanalol: i need help
15 hours ago 7 Replies 1 Medal
Arriyanalol: CONGRATS to me
18 hours ago 8 Replies 2 Medals
Legomaster346: What colleges are good that are near Arab Alabama?
1 week ago 5 Replies 0 Medals
Arriyanalol: i need help
1 week ago 6 Replies 2 Medals
Arizona: does anyone know the percentage rate of 30,000 and 40,000
1 week ago 0 Replies 0 Medals
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!