Question

I have Eight Algebra Questions about Solving Systems of Equations Algebraically That I Would Like You To Check if They Are Correct. Please?

Answer 1

I. Solve the system of equations by substitution. What is the solution for x?
2x + y = 1
4x + 2y = -2

a. x = 0
b. x = 2
c. There is no x value as there is no solution.
d. x can be any value as there is an infinite number of solutions.

Answer 2

I chose C, There is no x-value as there is no solution.

Answer 3

D. Only because Y is not defined. Y can be any number, resulting in x being any number.

Answer 4

If that makes sense. It been awhile since I was in that math. Calc has changed me.

Answer 5

Thank you @mostwanting Can you please see if you can see if I got the right answers on the other seven questions.

Answer 6

Sure

Answer 7

Thank you.

Answer 8

Question 2 (Multiple Choice Worth 1 points)

(05.02)

If you were solving a system of equations and you came to a statement like 1 = 3, what do you know about the solution to the system?

The solution is (1, 3)

The solution is x = 1 and y = 3

There is no solution

There are infinitely many solutions

Answer 9

I chose C.

Answer 10

Agreed. Next.

Answer 11

Okay. Sorry for the wait, hold on.

Answer 12

I'll be here, lol

Answer 13

The art museum had a total of 224 visitors on Tuesday. Visitors older than 18 paid $12 for admission. Visitors 18 years or younger paid $8 for admission. The museum collected a total of $2,520. How many visitors were 18 or younger?

42

56

182

194

I dont know this one. D;

Answer 14

Ok, let me write it out on paper, cant do this in my head, but I do know how to do it. Just give me a min or two.

Answer 15

If I give you an equation, you think You can figure it out?



With this, and I believe you know how to do it with this info, you should solve with x.

I wont give you this answer, only because I think you didnt know how to set it up.

Answer 16

Okay, thanks! That is what I had a trouble with - setting it up! I didnt do the 8x + 12y thingie that you did, let me solve it.

Answer 17

Ok, good.

Answer 18

Okay, um...I got 315 solving for x...

Answer 19

This is what I did:\[8x+12y=2520\]\[8x+12(0)=2520\]\[8x+0=2520\]\[8x=2520\]\[315.\]

Answer 20

I solved for Y, than plugged it in to the 2nd equation and got 14... I didnt check my own answer. Let me think again.

Answer 21

Post the next question while I figure what I did wrong

Answer 22

Oh, okay.
Question 5 (Multiple Choice Worth 1 points)

(05.02)

Solve the system of equations.

2x - 5y = 3
x - 3y = 1

(4, 1)

(5, 2)

(7, 2)

(9, 3)
I chose A

Answer 23

Agreed

Answer 24

I got -91 as my answer for the other one.

Answer 25

Hmmm. Do the next. I either get negatives or 315 and stuff. I'll try to rewrite my equation

Answer 26

Okay.
Solve the following system of equations:

-2x + y = 1
-4x + y = -1

(3, 1)

(-1, 3)

(-1, -3)

(1, 3)
I chose D.

Answer 27

That good.

Answer 28

Okay.

Solve the following system of equations:

x - 2y = 14
x + 3y = 9

(1, 12)

(-1, -12)

(12, -1)

(12, 1)

Answer 29

C. I'll give you that one

Answer 30

Okay, thanks. Oh, I forgot to tell you what I chose. I chose C actually. Lol. I have two more that I HAVENT answered Theyre the same subject.

Answer 31

Ill be back like in 20 minutes.

Answer 32

Ok. I'll help some others and look up the other problem thats a pain.

Answer 33

Okay, I'm back.

Answer 34

Here is one of the two questions I cannot seem to figure out.

Choose the equivalent system of linear equations that will produce the same solution as the one given below.

6x + 2y = -6
3x - 4y = -18

a. 12x + 4y = -12
15x = -30
b. 8x + 4y = -4
14x = -10
c. 6x - 8y = -36
-6y = -42
d. 6x - y = -15
3y = 9

Answer 35

did u ever gdt the answer?

Answer 36

ya @kewlgeek555

Answer 37

what was the answer then?

Answer 38

If x can be any number, how many solutions are there for the equation?



y = 4x – 1



A.
There are two solutions.


B.
There is no solution.


C.
There are many solutions.


D.
There is only one solution.