Systems by Elimination Uncommon Coefficients
Authored by Anthony Clark
Mathematics
9th Grade
CCSS covered
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by elimination:
-x+2y=17
2x+2y=-10
ARN
(-9,4)
(-9,-4)
(9,-4)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by elimination
4x-6y= -6
-2x-12y= -12
(0,1)
(1,0)
(1,1)
(0, 2)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve by elimination
2x+9y= -7
6x-3y= 9
(-1, -1)
(2,-1)
(1,1)
(1,-1)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Solve the system using elimination.
2x + 3y = 12
5x - y = 13
(-3, -2)
(1.5, 2)
(3, 0)
(3, 2)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
8x + 14y = 4
-6x - 7y = -10
(4, -2)
(-2, 4)
(0, 3)
(-4, -2)
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Your friend rents 10 chairs and 2 tables for $300. Another friend rents 8 chairs and 4 tables for $360. How much does a chair and a table cost? Write a system of equations to solve.
Chairs $2 Tables $5
Chairs $50 Tables $20
Chairs $10 Tables $15
Chairs $20 Tables $50
Tags
CCSS.8.EE.C.8C
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
You and your brother each decide to open a savings account. You open your account at Elsa’s Banking Branch. Your brother opens his account at Anna’s Banking Company. You put $50 in the bank and your account earns $4 per week in interest. Your brother puts $150 in his account but only earns $2 per week in interest. How many weeks will it take for both your brother and your account to have the same balance? Write a system of linear equations to solve the problem.
200 weeks
300 weeks
50 weeks
250 weeks
Tags
CCSS.8.EE.C.8C
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