
Ulangan Harian
Authored by Kholifatun Nisa28
Mathematics
8th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Selesaikan sistem persamaan berikut: 2x + 3y = 12 dan x - y = 1.
(3, 2)
(2, 4)
(1, 3)
(4, 1)
2.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Gunakan metode substitusi untuk menyelesaikan: x + 2y = 10 dan 3x - y = 5.
x = 20/7, y = 25/7
x = 10, y = 0
x = 3, y = 3.5
x = 5, y = 2.5
3.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Tentukan solusi dari sistem persamaan: 4x + y = 20 dan 2x - 3y = -6.
(x, y) = (10, 0)
(x, y) = (0, 20)
(x, y) = (27/7, 32/7)
(x, y) = (5, 10)
4.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Selesaikan dengan metode eliminasi: 5x + 2y = 15 dan 3x + 4y = 18.
x = 3, y = 4
x = 1, y = 5
x = 0, y = 7
x = 12/7, y = 45/14
5.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Analisis solusi dari sistem persamaan: x + y = 7 dan x - y = 1.
(4, 3)
(3, 4)
(6, 1)
(5, 2)
6.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Terapkan konsep variabel untuk menyelesaikan: 3a + 4b = 24 dan 2a - b = 2.
a = 0, b = 24
a = 32/11, b = 42/11
a = 5, b = 3
a = 10, b = 4
7.
MULTIPLE CHOICE QUESTION
3 mins • 10 pts
Gunakan metode substitusi untuk sistem: 2x + y = 8 dan x - 2y = -4.
(0, 8)
(2, 4)
(4, 0)
(12/5, 16/5)
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