Perhatikan pernyataan di bawah ini :
(1) 2x-1 = 32
(2) 2x – 7y = 14
(3) + = 10
(4) 7a + 4b + 2c = 28
Pernyataan diatas yang merupakan persamaan linear adalah …
Sistem Persamaan Linier Dua dan Tiga Variabel
Quiz
•
Mathematics
•
12th Grade
•
Hard
MARENI NOPIYA
Used 19+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Perhatikan pernyataan di bawah ini :
(1) 2x-1 = 32
(2) 2x – 7y = 14
(3) + = 10
(4) 7a + 4b + 2c = 28
Pernyataan diatas yang merupakan persamaan linear adalah …
(1) dan (2)
(2) dan (3)
(1) dan (3)
(2) dan (4)
Answer explanation
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Nilai x dari sistem persamaan 2x + y = 5 dan 3x – 2y = 4 adalah …
1
2
-1
3
Answer explanation
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Himpunan penyelesaian dari sistem persamaan x + y = 12 dan x – y = 4 adalah …
{ 12 , 4 }
{ 4 , 12 }
{ 8 , 4 }
{ 8 , 12 }
Answer explanation
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Nilai x dan y berturut-turut yang memenuhi sistem persamaan
x + 5y = 13
2x – y = 4
adalah …
x = -2 dan y = 3
x = 3 dan y = 2
x = 3 dan y = -2
x = 2 dan y = 4
Answer explanation
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Himpunan penyelesaian dari SPLTV
x + y – z = -3
x + 2y + z = 7
2x + y + z = 4
adalah …
{-1, -2, -4}
{-1, -2, 4}
{1, -2, 4}
{-1, 2, 4}
Answer explanation
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Bu Intan, Bu Irma dan Bu Ika membeli buah di kios buah “Murni Buah”. Bu Intan membeli 3 kg jeruk, 2 kg duku, dan 1 kg apel seharga Rp 110.000,00. Bu Irma membeli 2 kg jeruk, 1 kg duku dan 3 kg apel seharga Rp 125.000,00. Sedangkan Bu Ika membeli 1 kg jeruk, 1 kg duku dan 1 kg apel seharga Rp 60.000,00. Model matematika dari permasalahan tersebut adalah …
x + y + z = 110.000
3x + 2y + z = 125.000
2x + y + z = 60.000
3x + 2y + z = 110.000
3x + 2y + z = 125.000
2x + y + z = 60.000
3x + 2y + z = 110.000
2x + y + 3z = 125.000
x + y + z = 60.000
3x + 2y + z = 120.000
3x + 2y + z = 100.000
2x + y + z = 60.000
Answer explanation
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Diketahui harga 5 kg apel dan 2 kg jeruk Rp 145.000,00 sedangkan harga 3 kg apel dan 2 kg jeruk Rp 95.000,00.
Maka, harga 1 kg apeladalah …
Rp 25.000,00
Rp 20.000,00
Rp 15.000,00
Rp 30.000,00
Answer explanation
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