PRETEST SISTEM PERSAMAAN LINEAR TIGA VARIABEL
Quiz
•
Mathematics
•
12th Grade
•
Practice Problem
•
Hard
Leni Utama
Used 3+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Diketahui tiga buah bilangan. Bilangan pertama ditambah bilangan kedua sama dengan dua kali bilangan ketiga. Selisih bilangan pertama dan ketiga sama dengan empat kali bilangan kedua. Jika jumlah ketiga bilangan sama dengan 15, nyatakan ke dalam model matematika!
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Jumlah tiga bilangan sama dengan 45. Bilangan pertama ditambah 4 sama dengan bilangan kedua, dan bilangan ketiga dikurangi 17 sama dengan bilangan pertama. Bentuklah tiga persamaan linear tiga variable sesuai cerita di atas!
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Harga 2 kg mangga, 2 kg jeruk, dan 1 kg anggur adalah Rp. 76.000, 00. Harga 1 kg mangga, 2 kg jeruk, 2 kg anggur adalah Rp. 98.000, 00. Harga 2 kg mangga, 2 kg jeruk, dan 3 kg anggur adalah Rp. 136.000. Nyatakan ke dalam model matematika!
Answer explanation
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Rani hendak membeli beberapa jenis buah-buahan yaitu, 5 kg buah apel, 2 kg buah jeruk dan 3 kg buah anggur dengan uang sebesar Rp 125.000,00. Ubahlah kalimat tersebut dalam bentuk persamaan matematis.
5𝑥 + 2𝑦 + 3𝑧 = 125000
125000 + 5𝑥 + 2𝑦 + 3𝑧 = 0
5𝑥 + 2𝑦 = 125000 + 3𝑧
5𝑥 = 125000 + 2𝑦 + 3𝑧
5𝑥 + 3𝑧 = 125000 + 2𝑦
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
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.
𝑥 + 𝑦 + 𝑧 = 52;
2𝑥 + 2𝑦 – 2𝑧 = 30;
𝑥 – 2𝑦 + 3𝑧 = 58
𝑥 + 𝑦 + 𝑧 = 58;
2𝑥 + 2𝑦 – 2𝑧 = 52;
𝑥 – 2𝑦 + 3𝑧 = 30
𝑥 + 𝑦 + 𝑧 = 52;
2𝑥 + 2𝑦 – 2𝑧 = 58;
𝑥 – 2𝑦 + 3𝑧 = 30
𝑥 + 𝑦 + 𝑧 = 58;
2𝑥 + 2𝑦 – 2𝑧 = 30;
𝑥 – 2𝑦 + 3𝑧 = 52
𝑥 + 𝑦 + 𝑧 = 58;
2𝑥 + 2𝑦 – 3𝑧 = 30; 𝑥 – 2𝑦 + 2𝑧 = 52
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