Quiz about Solve Matrix Equations

Question 1

Solve the system of equations:
x + y + z = 4
x = -2y
z = -3y

Accepted Answer

(2, -1, 3)

Answer

(2, 3, 1)

Answer

None of these

Answer

(4, 1, -1)

Question 2

Solve the system of equations:

Accepted Answer

( -2, -3, 3)

Answer

( -2, 3, -3)

Answer

None of these

Answer

( -3, 3, -2)

Question 3

Solve the system of equations:

Accepted Answer

( -4, 0, -2)

Answer

( 4, 0, -2)

Answer

( -4, -2, 0)

Answer

None of these

Question 4

Solve the system of equations:

Accepted Answer

( 4, 3, -1)

Answer

( 4, 2, -1)

Answer

None of these

Answer

( -4, 3, 1)

Question 5

Solve the system of equations:

Accepted Answer

None of these

Answer

( 5, 1, -4)

Answer

(-5, 3, -1)

Answer

( -1, 5, -4)

Question 6

Solve the system of equations:

Accepted Answer

( -1, 6, 1)

Answer

( 1, 6, -1)

Answer

None of these

Answer

( -6, -1, 1)

Question 7

Solve the system of equations:

Accepted Answer

None of these

Answer

( -2, 2, 0)

Answer

( -2, -2, 0)

Answer

( 0, 2, 2)

Question 8

Solve the system of equations:

Accepted Answer

( -2, 4, -3)

Answer

( -2, -3, 4)

Answer

( 2, -4,3)

Answer

None of these

Question 9

Solve the system of equations:

Accepted Answer

( 2, 3, -1)

Answer

( -2, 1, -3)

Answer

No solution

Answer

None of these

Question 10

Solve the system of equations:

Accepted Answer

No solution

Answer

( -2, 4, 3)

Answer

( 2, 1, 6)

Answer

None of these

Question 11

The school that Laura goes to is selling tickets to the annual talent show. On the first day of ticket sales the school sold 4 senior citizen tickets, 2 adult tickets and 5 child tickets for a total of $55. The school took in $67 on the second day by selling 7 senior citizen tickets, 2 adult tickets and 5 child tickets. On the third day the show earned $46 when they sold 2 senior citizen tickets, 4 adult tickets and 2 child tickets. What is the price each of one senior citizen ticket, one adult ticket and one child ticket?

Accepted Answer

Adult: $7
Child: $5
Senior: $4

Answer

Adult: $12
Child: $8
Senior: $8

Answer

Adult: $6
Child: $4
Senior: $5

Answer

I did not get any of the answers above so I am assuming none ofthe above.

Question 12

Solve the system.

Accepted Answer

(-3, 2, -1)

Answer

(3, -2, 4)

Answer

(2, -3, 1)

Answer

Infinitely many solutions

Question 13

Solve the system.

Accepted Answer

(1, -3, -2)

Answer

(1, 2, -2)

Answer

(-1, 3, 2)

Answer

No Solution

Question 14

Solve the system of equations:
$$6x-4y+5z=31$$
$$5x+2y+2z=13$$
$$x+y+z=2$$

Accepted Answer

$$\left(3,-2,1\right)$$

Answer

( -2, 4, 3)

Answer

( 2, 1, 6)

Answer

None of these

Question 15

Solve:
-4x - 5y - z = 18
-2x - 5y - 2z = 12
-2x + 5y + 2z = 4

Accepted Answer

(-4, 0, -2)

Answer

(4, 0, -2)

Answer

Many Solutions

Answer

I did not get any of the answers above so I am assuming none of the above.

Question 16

Solve the system of equations:

Accepted Answer

No solution

Answer

( -2, 4, 3)

Answer

( 2, 1, 6)

Answer

infinite # of solutions

Question 17

Solve the system of equations:

Accepted Answer

( -2, -3, 3)

Answer

( -2, 3, -3)

Answer

None of these

Answer

( -3, 3, -2)

Question 18

Solve the system.

Accepted Answer

(5, -6, 3)

Answer

(5, 3, -1)

Answer

(5, -6, 5)

Answer

No Solution

Question 19

Solve the system.

Accepted Answer

(-3, 2, -1)

Answer

(3, -2, 4)

Answer

(2, -3, 1)

Answer

Infinitely many solutions

Question 20

Solve the system of equations:

Accepted Answer

( -1, 6, 1)

Answer

( 1, 6, -1)

Answer

None of these

Answer

( -6, -1, 1)

Question 21

Solve the system of equations:

Accepted Answer

None of these

Answer

( 5, 1, -4)

Answer

(-5, 3, -1)

Answer

( -1, 5, -4)

Question 22

Solve the system of equations:

Accepted Answer

( -4, 0, -2)

Answer

( 4, 0, -2)

Answer

( -4, -2, 0)

Answer

None of these

Question 23

Solve the system of equations:

Accepted Answer

( 4, 3, -1)

Answer

( 4, 2, -1)

Answer

None of these

Answer

( -4, 3, 1)

Question 24

Solve the system of equations:

Accepted Answer

No solution

Answer

( -2, 4, 3)

Answer

( 2, 1, 6)

Answer

None of these

Question 25

Solve the system.

Accepted Answer

(5, -6, 3)

Answer

(2, 3, -1)

Answer

(-4, 2, 5)

Answer

No Solution

Question 26

Solve the system.
$$2x+y=9$$
$$x-2z=-3$$
$$2y+3z=15$$

Accepted Answer

Answer

(3, -2, 4)

Answer

(2, -3, 1)

Answer

Infinitely many solutions

Question 27

Solve the System:
$$x+y+z=6$$
$$2x-y+3z=9$$
$$-x+2y+2z=9$$

Accepted Answer

$$\left(1,2,3\right)$$

Answer

$$\left(3,2,1\right)$$

Answer

$$\left(2,1,3\right)$$

Answer

$$\left(2,3,1\right)$$

Question 28

Monica has $1, $5, and $10 bills in her wallet that are worth $96. If she had one more $1 bill, she would have just as many $1 bills as $5 and $10 bills combined. She has 23 bills total. How many of each denomination does she have ?

Accepted Answer

$$\left(11,7,5\right)$$

Answer

$$\left(7,5,11\right)$$

Answer

$$\left(13,\ 2,8\right)$$

Answer

$$\left(10,8,5\right)$$

Question 29

Solve each System:
$$2x-y+2z=10$$
$$4x+2y\ -5z=10$$
$$x-3y+5z=8$$

Accepted Answer

$$\left(4,2,2\right)$$

Answer

$$\left(4,1,2\right)$$

Answer

$$\left(2,4,2\right)$$

Answer

$$\left(2,2,4\right)$$

Question 30

The sum of three numbers is -2. The sum of three times the first number, twice the second number, and the third number is 9. The difference between the second number and half the third number is 10. Find the numbers.

Accepted Answer

$$\left(3,5,-10\right)$$

Answer

$$\left(5,3,-10\right)$$

Answer

$$\left(-10,5,3\right)$$

Answer

$$\left(-10,3,5\right)$$

Question 31

Solve the System:
$$2x-3y+z=4$$
$$-2x+3y-z=-4$$
$$6x-9y+3z=12$$

Accepted Answer

$$\left(2,0,0\right)$$

Answer

$$\left(0,2,0\right)$$

Answer

$$\left(2,0,1\right)$$

Answer

$$\left(0,0,2\right)$$

Question 32

Solve:

x + y + z = -1

2x -y +2z= -5

-x +2y -z = 4

Accepted Answer

(-2,1,-2)

Answer

(-5, 3, 1)

Answer

(10, -2, 0)

Answer

(4, 1, -1)

Question 33

For :
$$x+y\ +z=-1$$
$$4x+3y+2z=-10$$
$$2x-4y-2z=-6$$
Solve the System

Accepted Answer

$$\left(-3,-2,4\right)$$

Answer

$$\left(-3,2,1\right)$$

Answer

$$\left(-2,-3,3\right)$$

Answer

$$\left(4,-2,-3\right)$$

Question 34

For:
$$2x+3y-2z=-1$$
$$x+5y=9$$
$$4z-5x=4$$
What is the x value?

Accepted Answer

Answer

Answer

Answer

Question 35

Solve:

x + y +z = 200

z = 2y

12x + 24y + 36z = 6000

Accepted Answer

(20,60,120)

Answer

(60,20,125)

Answer

(20,120,60)

Answer

(150,60,10)

Question 36

In a pasture are horses and chickens if there are a total of 28 animals and 80 legs how many chickens and horses?

Accepted Answer

12 horses, 16 chickens

Answer

10 horses, 18 chickens

Answer

16 horses, 12 chickens

Answer

18 horses, 10 chickens

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