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Latihan USEK part 2

Authored by Brigita Minarni

Mathematics

9th - 12th Grade

Latihan USEK part 2
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20 questions

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1.

MULTIPLE CHOICE QUESTION

2 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.

Dari pernyataan diatas maka dapat dibuat model matematikanya . . . .

x + 3y + 2z = 33.000

2x + y + z = 23.500

3x + 2y + 3z = 36. 500

x + 3y + 2z = 33.000

2x + y + z = 36. 500

x + 2y + 3z = 23. 500

x + 3y + 2z = 33.000

2x + y + z = 23.500

x + 2y + 3z = 36. 500

x + 3y + 2z = 33.000

2x + y + z = 23.500

x+ 2y + 3z = 36. 500

x + 3y + 2z = 33.000

2x + y + z = 23.500

y+ 3x + 3z = 36. 500

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

- 4

- 3

- 2

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4

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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Sistem pertidaksamaan untuk daerah yang diarsir adalah ...

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4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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5.

MULTIPLE CHOICE QUESTION

3 mins • 10 pts

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Daerah penyelesaian dari sistem pertidaksamaan: 7x + 2y < 14; 3x + 5y > 15; x > 0, y > 0 . Pada gambar di bawah ini adalah ....

I

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V

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Daerah Himpunan Penyelesaian dari  y<x2+2x3y<x^2+2x-3  adalah ....

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7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

daerah himpunan penyelesaian dari sistem pertidaksamaan  y\ge2x^2+3x-2  dan  2x+y<12x+y<1  adalah....

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