Solving Linear Systems by Elimination Answers
11 verified answers
1
Free Preview
After adding the two equations to eliminate x you are left with .Solve for y:y =
Answer:
-2
4
–2x + y = 32x – y = 4Using elimination to solve this system results in the equation .
A
= 7B
y = 7C
0 = 75
The equation 0 = 7 is __________ true.
A
sometimesB
alwaysC
never6
The system of equations has
A
no solutionsB
one solutionC
Infinitely many solutions7
Consider this system: Which of the following operations would eliminate the x-terms if the two equations were added together afterward?
A
Multiply the first equation by –6.B
Multiply the first equation by –2.C
Multiply the first equation by 2.D
Multiply the first equation by 6.8
Which of the following operations would eliminate the y-terms if the two equations were added together afterward?
A
Multiply the first equation by -2.B
Multiply the first equation by 2.C
Multiply the second equation by -2.D
Multiply the second equation by 2.9
What error did the student make?
A
In line 2, the student forgot to multiply the right side of the equation by 2.B
In line 3, the student should have subtracted the equations instead of adding them.C
In line 3, the student added the two equations incorrectly.D
In line 5, the student used an incorrect equation when solving for x.11
What does the solution (8, 5.5) mean in the context of this problem?
A
The cost of 8 child tickets is $5.50.B
The cost of 8 adult tickets is $5.50.C
A child ticket costs $8, and an adult ticket costs $5.50.D
An adult ticket costs $8, and a child ticket costs $5.50.Did you find these answers helpful?
Verified answers available
TRY EDGENUITY HACKS
- Auto Complete Exams
- Auto Complete Assignments
- Skip Videos Instantly
50,000+ students using this