
Sistem Persamaan Linear Tiga Variabel
Mathematics
10th Grade
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5 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Dengan menggunakan metode eliminasi, tentukanlah himpunan penyelesaian sistem persamaan linier tiga variabel (SPLTV) berikut ini.
x + y – z = –3
x + 2y + z = 7
2x + y + z = 4
{(–1, -1, 4)}
{(–1, 2, -4)}
{(–1, 2, 4)}
{(–1, -2, 4)}
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Dengan menggunakan metode eliminasi, tentukan himpunan penyelesaian sistem persamaan linear tiga variabel berikut ini.
x + 3y + 2z = 16
2x + 4y – 2z = 12
x + y + 4z = 20
{(-7, 1, 3)}
{(7, -1, 3)}
{(7, 1, -3)}
{(7, 1, 3)}
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Dengan menggunakan metode determinan, tentukanlah himpunan penyelesaian dari sistem persamaan berikut ini.
2x + y + z = 12
x + 2y – z = 3
3x – y + z = 11
{(3, 2, 4)}
{(-3, 2, 4)}
{(3, -2, 4)}
{(3, 2, -4)}
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Tentukan himpunan penyelesaian sistem persamaan berikut
2, 3, 1
1, 2, 3
2, 3, 1
-2, 3, 1
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sebuah kios menjual bermacam-macam buah di antaranya jeruk, salak, dan apel. Seseorang yang membeli 1 kg jeruk, 3 kg salak, dan 2 kg apel harus membayar Rp33.000,00. Orang yang membeli 2 kg jeruk, 1 kg salak, dan 1 kg apel harus membayar Rp23.500,00. Orang yang membeli 1 kg jeruk, 2 kg salak, dan 3 kg apel harus membayar Rp36.500,00. Berapakah harga per kilogram salak, harga per kilogram jeruk, dan harga per kilogram apel?
harga 1 kg jeruk adalah Rp4.000,00; harga 1 kg salak adalah Rp6.000,00; dan harga 1 kg apel adalah Rp7.500,00.
harga 1 kg jeruk adalah Rp6.000,00; harga 1 kg salak adalah Rp4.000,00; dan harga 1 kg apel adalah Rp7.500,00.
harga 1 kg jeruk adalah Rp6.000,00; harga 1 kg salak adalah Rp7.500,00; dan harga 1 kg apel adalah Rp4.000,00.
harga 1 kg jeruk adalah Rp4.000,00; harga 1 kg salak adalah Rp7.500,00; dan harga 1 kg apel adalah Rp6.000,00.
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