Solve Systems Using Substitution
Authored by Barbara White
Mathematics
8th Grade
CCSS covered
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46 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Use substitution to solve the system of equations.
5x + y = –24
x + 3y = –2
x = –5
y = –1
x = 5
y = 1
x = –5
y = 1
x = 5
y = –1
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Use substitution to solve the system of equations. How many solutions are there?
(1/2)x − (1/3)y = 5
x = (2/3)y + 10
There are no solutions.
There is one solution.
There are infinitely many solutions.
It is not possible to determine the number of solutions.
Tags
CCSS.8.EE.C.8B
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Use substitution to solve the system of equations.
y = 4.5x + 7.5
y = –3.5x – 4.5
x = –1.5, y = –0.75
x = 1.5, y = 0.75
x = –1.5, y = 0.75
x = 1.5, y = –0.75
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When using substitution to solve a system of equations, you tell when a system has no solution when the resulting equation is always false as in this example 4=5.
True
False
Both True and False
I don't have a clue.
Tags
CCSS.8.EE.C.8B
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tickets to a school play cost $3 for students and $8 for adults. On opening night, $1,000 was collected and 150 tickets sold. Use substitution to solve a system of equations to find how many of each kind of ticket were sold?
40 student tickets
110 adult tickets
110 student tickets
40 adult tickets
50 student tickets
100 adult tickets
100 student tickets
50 adult tickets
Tags
CCSS.8.EE.C.8C
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Solve this system of equations
y=8x-5
y=2x+19
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Solve this system of equations
2x+y=9
y=5x+2
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
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