Anni A

18 November 2023 04:29

Iklan

Anni A

18 November 2023 04:29

Pertanyaan

Marsandra membeli 3 buku tulis dan 2 bolpoin seharga Rp16.000,00. Fairuz membeli 5 buku dan 1 bolpoin yang sama seharga Rp22.000,00. Tentukan: a. model matematika dari soal tersebut, b. harga sebuah buku tulis, C. harga sebuah bolpoin, setta d. harga 2 buah buku dan 1 buah bolpoin! Jawab yang bener ya

8 dari 10 siswa nilainya naik

dengan paket belajar pilihan

Habis dalam

00

:

18

:

46

:

47

Klaim

1

2

Jawaban terverifikasi

Iklan

PEBRIANI S

19 November 2023 00:37

Jawaban terverifikasi

<p>Misalkan : buku tulis = x</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; bulpoin = &nbsp;y</p><p>diketahui : marsandra : 3 buku tulis + 2 bulpoin seharga Rp 16.000</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<strong>3x + 2y = Rp 16.000 &nbsp;---&gt; pers 1</strong></p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;fairuz &nbsp;: 5 buku tulis + 1 bulpoin seharga Rp 22.000</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<strong>5x + y = Rp 22.000 &nbsp; ---&gt; pers 2</strong></p><p>a. model matematika&nbsp;</p><p>&nbsp; &nbsp; &nbsp;<strong>3x + 2y = Rp 16.000 &nbsp;---&gt; pers 1</strong></p><p><strong>&nbsp; &nbsp; &nbsp;5x + y = Rp 22.000 &nbsp; ---&gt; pers 2</strong></p><p>b. harga sebuah buku tulis&nbsp;</p><p>&nbsp; &nbsp; 3x + 2y = Rp 16.000 &nbsp; |x1| &nbsp; &nbsp;3x + 2y = Rp 16.000</p><p>&nbsp; &nbsp;&nbsp;<u> 5x + y &nbsp;= Rp 22.000&nbsp;</u> &nbsp; |x2| <u>10x + 2y = Rp 44.000&nbsp;</u> -</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; - 7x &nbsp; &nbsp; &nbsp; &nbsp;= Rp -28.000</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;x &nbsp; &nbsp; &nbsp; &nbsp;= Rp -28.000 : (-7)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<strong> x &nbsp; &nbsp; &nbsp; &nbsp;= Rp 4.000</strong></p><p>&nbsp; &nbsp;<strong> &nbsp; Maka harga sebuah buku tulis adalah Rp 4.000</strong></p><p>c. harga sebuah bulpoin&nbsp;</p><p>&nbsp; &nbsp; &nbsp;5x + y = Rp 22.000</p><p>&nbsp; &nbsp; &nbsp;5 ( Rp 4000) + y = Rp 22.000</p><p>&nbsp; &nbsp; &nbsp; Rp 20.000 + &nbsp; y &nbsp;= Rp 22.000</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; y &nbsp; = Rp 22.000 - Rp 20.000</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<strong>y = Rp 2.000</strong></p><p>&nbsp; &nbsp; &nbsp;<strong>Maka harga sebuah bulpoin adalah Rp 2.000</strong></p><p>d. &nbsp;harga dua buah buku tulis dan 1 buah bulpoin&nbsp;</p><p>&nbsp; &nbsp; &nbsp; 2x + y&nbsp;</p><p>&nbsp; &nbsp; &nbsp;= 2 (Rp 4.000) + Rp 2.000</p><p>&nbsp; &nbsp; &nbsp;= Rp 8.000 + Rp 2.000</p><p>&nbsp; &nbsp; &nbsp;= Rp 10.000</p><p>&nbsp; &nbsp; &nbsp;&nbsp;<strong>Maka harga dua buku tulis dan 1 buah bulpoin adalah Rp 10.000</strong></p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<br>&nbsp;</p><p>&nbsp;</p>

Misalkan : buku tulis = x

                      bulpoin =  y

diketahui : marsandra : 3 buku tulis + 2 bulpoin seharga Rp 16.000

                       3x + 2y = Rp 16.000  ---> pers 1

                       fairuz  : 5 buku tulis + 1 bulpoin seharga Rp 22.000

                       5x + y = Rp 22.000   ---> pers 2

a. model matematika 

     3x + 2y = Rp 16.000  ---> pers 1

     5x + y = Rp 22.000   ---> pers 2

b. harga sebuah buku tulis 

    3x + 2y = Rp 16.000   |x1|    3x + 2y = Rp 16.000

     5x + y  = Rp 22.000    |x2| 10x + 2y = Rp 44.000  -

                                                        - 7x        = Rp -28.000

                                                             x        = Rp -28.000 : (-7)

                                                             x        = Rp 4.000

      Maka harga sebuah buku tulis adalah Rp 4.000

c. harga sebuah bulpoin 

     5x + y = Rp 22.000

     5 ( Rp 4000) + y = Rp 22.000

      Rp 20.000 +   y  = Rp 22.000

                                y   = Rp 22.000 - Rp 20.000

                                y = Rp 2.000

     Maka harga sebuah bulpoin adalah Rp 2.000

d.  harga dua buah buku tulis dan 1 buah bulpoin 

      2x + y 

     = 2 (Rp 4.000) + Rp 2.000

     = Rp 8.000 + Rp 2.000

     = Rp 10.000

      Maka harga dua buku tulis dan 1 buah bulpoin adalah Rp 10.000

          
 

 


Anni A

19 November 2023 00:38

Semoga bener, makasih ya

Iklan

Gandan M

18 November 2023 07:06

<p>Harga 2buku Dan 1 bolpoin</p>

Harga 2buku Dan 1 bolpoin


Anni A

18 November 2023 10:51

Maksud

Mau pemahaman lebih dalam untuk soal ini?

Tanya ke Forum

Biar Robosquad lain yang jawab soal kamu

Tanya ke Forum

LATIHAN SOAL GRATIS!

Drill Soal

Latihan soal sesuai topik yang kamu mau untuk persiapan ujian

Cobain Drill Soal

Perdalam pemahamanmu bersama Master Teacher
di sesi Live Teaching, GRATIS!

Iklan