Quiz about Penilain Sumatif Akhir Semester Ganjil Kelas VIII 2024/2025

Question 1

Sistem persamaan linear dua variabel yang sesuai dengan gambar di samping adalah . . .

Accepted Answer

2x + 3y = 22.000

x + 6y = 20.000

Answer

x + 3y = 22.000

6x + 2y = 20.000

Answer

2x + 6y = 22.000

3x + y = 20.000

Answer

6x + 3y = 22.000

2x + y = 20.000

Question 2

Dengan menggunakan metode eliminasi-subtitusi, tentukanlah nilai x dan y yang memenuhi sistem persamaan linear dua variabel berikut:

$$2x\ +\ y\ =13$$

$$x\ -\ y\ =\ 5$$

Accepted Answer

$$x\ =\ 6\ dan\ y\ =\ 1$$

Answer

$$x\ =\ 6\ dan\ y\ =-1$$

Answer

$$x=1\ dan\ y=6$$

Answer

$$x=-1\ dan\ y=6$$

Question 3

Hasil dari Sistem Persamaan berikut adalah:

2x+3y = 8

3x-4y = -5 adalah ........

Accepted Answer

{1,2}

Answer

{2,1}

Answer

{-2,1}

Answer

{0,1}

Question 4

$$Hasil\ dari\ 2x+8y-6x+y\ adalah.....$$

Accepted Answer

-4x+9y

Answer

2x+9y

Answer

-4x-9

Answer

-x+9y

Question 5

$$Hasil\ penjumlahan\ dari\ x-2y\ dan\ -3x+5y\ adalah.........$$

Accepted Answer

$$-2x+3y$$

Answer

$$x+y$$

Answer

$$-2x+y$$

Answer

-x+3y

Question 6

$$Hasil\ dari\ 5x-4\ dikurangi\ 3x-7y\ adalah.......$$

Accepted Answer

$$2x+3y$$

Answer

$$8x-7y$$

Answer

$$x+3y$$

Answer

$$5x-4$$

Question 7

$$Hasil\ dari\ 5\left(3x+2y\right)\ adalah......$$

Accepted Answer

$$15x-10y$$

Answer

$$15x+10y$$

Answer

$$8x-10y$$

Answer

$$x+10y$$

Question 8

$$Hasil\ dari\ \left(9x+15y\right):3\ adalah.......$$

Accepted Answer

$$3x+5y$$

Answer

$$3x-5y$$

Answer

$$x-5y$$

Answer

$$3x+y$$

Question 9

$$Hasil\ dari\ 4\left(3x+2y\right)-3\left(5x-y\right)\ adalah......$$

Accepted Answer

$$-3x+11y$$

Answer

$$-x+11y$$

Answer

$$12x-11y$$

Answer

$$x-7y$$

Question 10

$$Nilai\ dari\ \frac{x+2y}{2}-\frac{x-y}{3}\ adalah........$$

Accepted Answer

$$\frac{x+8y}{6}$$

Answer

$$\frac{3x+8y}{6}$$

Answer

$$\frac{2x-8y}{8}$$

Answer

$$\frac{x-y}{5}$$

Question 11

$$Hasil\ dari\ 3a imes4b\ adalah.............$$

Accepted Answer

$$12ab$$

Answer

$$3a4b$$

Answer

$$12a2b$$

Answer

$$7ab$$

Question 12

$$Hasil\ dari\ 3a^2 imes2a\ adalah........$$

Accepted Answer

$$6a^3$$

Answer

$$6a$$

Answer

$$5a^2$$

Answer

$$5a^3$$

Question 13

$$Hasil\ dari\ \left(-5x\right)^2\ adalah.........$$

Accepted Answer

$$25x^2$$

Answer

$$x^2$$

Answer

$$-25x^2$$

Answer

$$-5x^2$$

Question 14

$$Nilai\ dari\ \left(-6xy ight) imes2y\ \ adalah\ ......$$

Accepted Answer

$$-12xy^2$$

Answer

$$-xy^2$$

Answer

$$-8xy^2$$

Answer

$$12xy^2$$

Question 15

$$Hasil\ dari\ 8x\ imes\left(-x ight)^2\ adalah\ .........$$

Accepted Answer

$$8x^3$$

Answer

$$x^3$$

Answer

$$2x^3$$

Answer

$$8x^2$$

Question 16

$$Hasil\ dari\ 20ab:4a\ adalah\ .......$$

Accepted Answer

$$5b$$

Answer

$$5ab$$

Answer

$$-5a$$

Answer

$$-5ab$$

Question 17

Heru sedang bertamasya di Jepang. Ia membeli 1 Hamburger dan 3 gelas mnuman seharga 700 yen. Ia membeli lagi 2 hamburger dan 1 gelas minuman seharga 600 yen. Berapa harga masing-masing dari 1 hamburger dan 1 gelas minuman?

Accepted Answer

$$x=220,\ y=160$$

Answer

$$x=220,\ y=600$$

Answer

$$x=1.400,\ y=160$$

Answer

$$x=110,\ y=160$$

Question 18

Hasil dari sistem persamaan linier dua variabel adalah:

2x+y = 13,

x-y = 5 adalah ............

Accepted Answer

x = 6y = 1

Answer

x = 6

y = 13

Answer

x = 6

y = -1

Answer

x = 5y = 1

Question 19

Selesaikan sistem persamaan berikut.

4x-6y= -14

9x+6y= -12 adalah.......

Accepted Answer

x = -2

y = 1

Answer

x = 2y = 1

Answer

x = 2

y = -4

Answer

x = 0y = 1

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