
FORMATIF 1
Quiz
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Medium
Desita Asra
Used 2+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
2. Sebuah kotak berisi 58 karcis yang berwarna merah, kuning dan hijau. Dua kali karcis merah ditambah karcis kuning kemudian dikurangi dua kali karcis hijau sama dengan 30. Karcis merah dikurangi dua kali karcis kuning dan ditambah tiga kali karcis hijau sama degan 52. PLTV dari soal ini adalah sebagai berikut.
A. 𝑥 + 𝑦 + 𝑧 = 58; 2𝑥 + 2𝑦 – 2𝑧 = 30; 𝑥 – 2𝑦 + 3𝑧 = 52
B. 𝑥 + 𝑦 + 𝑧 = 52; 2𝑥 + 2𝑦 – 2𝑧 = 30; 𝑥 – 2𝑦 + 3𝑧 = 58
C. 𝑥 + 𝑦 + 𝑧 = 58; 2𝑥 + 2𝑦 – 2𝑧 = 52; 𝑥 – 2𝑦 + 3𝑧 = 30
D. 𝑥 + 𝑦 + 𝑧 = 52; 2𝑥 + 2𝑦 – 2𝑧 = 58; 𝑥 – 2𝑦 + 3𝑧 = 30
E. 𝑥 + 𝑦 + 𝑧 = 58; 2𝑥 + 2𝑦 – 3𝑧 = 30; 𝑥 – 2𝑦 + 2𝑧 = 52
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
1. Sebuah bilangan terdiri atas 3 angka. Jumlah ketiga angkanya sama dengan 16. Jumlah angka pertama dan angka kedua sama dengan angka ketiga dikurangi dua. Persamaan matematika yang sesuai dengan soal adalah… .
A. 𝑥 + 𝑦 + 𝑧 = 16; 𝑥 + 𝑦 – 𝑧 = – 2
B. 𝑥 + 𝑦 + 𝑧 = – 2; 𝑥 + 𝑦 – 𝑧 = 16
C. 𝑥 + 𝑦 + 𝑧 = 3; 𝑥 + 𝑦 + 𝑧 = 16
D. 𝑥 + 𝑦 – 𝑧 = – 2; 𝑥 + 𝑦 + 𝑧 = 3
E. 𝑥 + 𝑦 + 𝑧 = 3; 𝑥 + 𝑦 – 𝑧 = – 2
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
3. Ibu Ira membeli 5 kg telur, 2 kg daging, dan 1 kg ikan dengan harga Rp 305.000,00. Ibu Budi membeli 3 kg telur dan 1 kg daging dengan harga Rp 131.000,00. Ibu Shifa membeli 3 kg daging dan 2 kg ikan dengan harga Rp 360.000,00. SPLTV dari permasalahan kontekstual ini adalah… .
A. 5x + 2 y + z = 305000
2x + y = 131000
3y + 2z = 360000
B. 5x + 2 y + z = 305000
3x + y = 131000
3y + z = 360000
C. 5x + 2 y + z = 305000
3x + y = 131000
3y + 2z = 360000
D. 5x + 2 y + z = 305000
3y + 2z = 131000
3x + 2z = 360000
E. 5x + 2 y + z = 305000
3x + z = 131000
3y + z = 360000
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
4. Ali, Badar, dan Carli berbelanja di sebuah toko buku. Ali membeli dua buah buku tulis, sebuah pensil, dan sebuah penghapus. Ali harus membayar Rp 4.700,00. Badar membeli sebuah buku tulis, dua buah pensil, dan sebuah penghapus. Badar harus membayar Rp 4.300,00. Carli membeli tiga buah buku tulis, dua buah pensil, dan sebuah penghapus. Carli harus membayar Rp 7.100,00. SPLTV yang sesuai untuk soal cerita ini adalah… .
A. 2x + y + z = 4.300
x + 2y + z = 4.700 3x + 2y + z = 7.100
B. 2x + y + z = 4.700
x + 2y + z = 7.100 3x + 2y + z = 4.300
C. 3x + 2 y + z = 4.700
2x + y + z = 4.300 3x + 2y + z = 7.100
D. 3x + 2 y + z = 4.300
x+ 2y + z = 4.700x +y + z = 7.100
E. 2x + y + z = 4.700
x + 2y + z = 4.300 3x + 2y + z = 7.100
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
5. Tentukan himpunan penyelesaian sistem persamaan linear tiga variabel berikut.
2x + 5y – 3z = 3
{ 6x + 8y − 5z = 7
−3x + 3y + 4y = 15
A. {(1, 2, 3)}
B. {(3, 7, 15)}
C. {(2, 6, – 3)}
D. {(1, 3, 2)}
E. {(15, 7, 3)}
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