Roboguru

Pertanyaan

Adik membeli 2 kelereng dan 4 gasing seharga Rp7.000,00. kakak membeli 5 kelereng dan 7 gasing seharga Rp13.000,00. Harga 1 lusin kelereng adalah...

  1. Rp6.000,00

  2. Rp10.000,00

  3. Rp12.000,00

  4. Rp18.000,00

H. Nufus

Master Teacher

Mahasiswa/Alumni Universitas Negeri Surabaya

Jawaban terverifikasi

Pembahasan

M i s a l k a n space h a r g a space 1 space k e l e r e n g colon space k  space space space space space space space space space space space space space space space space space h a r g a space 1 space g a sin g space colon space g  M a k a space d i p e r o l e h space p e r s a m a a n colon  2 k plus 4 g equals 7.000 rightwards arrow k plus 2 g equals 3.500 space  5 k plus 7 g equals 13.000 space space  K e m u d i a n space u n t u k space m e n c a r i space k space d a n space g comma  a k a n space d i l a k u k a n space e l i m i n a s i space d a n space s u b s t i t u s i.  bottom enclose table row cell k plus 2 g equals 3.500 end cell row cell 5 k plus 7 g equals 13.000 end cell end table open vertical bar table row cell cross times 5 end cell row cell cross times 1 end cell end table close vertical bar table row cell 5 k plus 10 g equals 17.500 end cell row cell space 5 k space plus 7 g equals 13.000 end cell end table end enclose minus  space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space 3 g equals 4.500  space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space g equals 1.500  A k i b a t n y a comma space d i p e r o l e h space n i l a i space k space a d a l a h space  k plus 2 g equals 3.500 space  k plus 3.000 equals 3.500 space  k equals 500 space space  J a d i comma space n i l a i space d a r i space 12 k equals 12 left parenthesis 500 right parenthesis equals 6.000              space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space  space space space space space

 

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