Systems Of Linear Equations Question Preview (ID: 57529)


Solving Systems Of Linear Equations. TEACHERS: click here for quick copy question ID numbers.

-3x+y=2 and mx+ny=-6 For what values of m and n would the system have infinite solutions?
a) m=-3, n=-4
b) m=9, n=1
c) m=9, n=-3
d) m=3, n=-1

2x+8y=2 and x+by=c For what values of b and c would the system have NO solution?
a) b=8, c=2
b) b=8, c=-2
c) b=4, c=1
d) b=4, c=3

If a-b=7 and 2a+b=-1, then b=
a) -3
b) -5
c) 2
d) 4

2x-y=-8 and 3x+2y=2. What is the value of x if the following equations are true?
a) -4
b) 4
c) -2
d) 10

y=5x-2 and 10x-2y=8. Tell what kind of solution this system will have.
a) infinite solution
b) no solution
c) one solution
d) two solutions

y=2x-1 and 3x+3y=15 What is the solution to this system?
a) (-2, -3)
b) (-3, 2)
c) (3, 2)
d) (2, 3)

15x+3y=9 and 10x+7y=-4. What is the solution to this system?
a) (1, -2)
b) (-1, 2)
c) (-1, -2)
d) (1, 2)

-x-5y-5z=2 and 4x-5y+4z=19 and x+5y-z=-20. Solve the system.
a) (-2, 3, -3)
b) (-2, -3, 3)
c) (-3, 3, -2)
d) (3, -3, 2)

-6x+5y+2z=-11 and -2x+y+4z=-9 and 4x-5y+5z=-4. Solve the system.
a) (-4, -2, 1)
b) (4, 2, -1)
c) (-4, 3, -1)
d) (4, 3, -1)

Dennis mowed his next door neighbor’s lawn for a handful of dimes and nickels, 80 coins in all. Upon completing the job he counted out the coins and it came to $6.60. Which system could be used to find the exact number of dimes and nickels?
a) d+n=6.60 and 0.10d+0.05n=80
b) d+n=80 and d+n=6.60
c) d+n=80 and 0.10d+0.05n=6.60
d) d+n=80 and 0.05d+0.10n=6.60

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