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Pertanyaan

T o k o e l e k t ro nik

  1. Rp 24.000.000,00

  2. Rp 25.600.000,00

  3. Rp 26.500.000,00

  4. Rp 27.000.000,00

  5. Rp 28.400.000,00

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S. Nur

Master Teacher

Jawaban terverifikasi

Pembahasan

H a r g a space j u a l space 1 space u n i t space t e l e v i s i space a d a l a h space  open parentheses 160 minus 800 over x minus 2 x close parentheses space p u l u h space r i b u space r u p i a h    J i k a space t e l e v i s i space t e r j u a l space s e b a n y a k space x space u n i t comma space m a k a space h a s i l space p e n j u a l a n n y a space a d a l a h space  f left parenthesis x right parenthesis equals x open parentheses 160 minus 800 over x minus 2 x close parentheses  f left parenthesis x right parenthesis equals 160 x minus 800 minus 2 x squared    f left parenthesis x right parenthesis space a k a n space m e n c a p a i space n i l a i space m a k s i m u m space s a a t space f to the power of apostrophe left parenthesis x right parenthesis space equals 0  space f to the power of apostrophe left parenthesis x right parenthesis space equals 0  160 minus 4 x equals 0  4 x equals 160  x equals 40

J a d i space a g a r space h a s i l space p e n j u a l a n space m a k s i m u m comma space j u m l a h space t e l e v i s i space y a n g space t e r j u a l space h a r u s l a h space 40 space u n i t comma space  d e n g a n space p e n j u a l a n space 40 space u n i t space t e l e v i s i comma space m a k a space h a s i l space p e n j u a l a n space y a n g space d i d a p a t space a d a l a h space  f left parenthesis x right parenthesis equals 160 x minus 800 minus 2 x squared  f left parenthesis 40 right parenthesis equals 160 left parenthesis 40 right parenthesis minus 800 minus 2 left parenthesis 40 right parenthesis squared  f left parenthesis 40 right parenthesis equals 6.400 minus 800 minus 3.200  f left parenthesis 40 right parenthesis equals 2400    D e n g a n space f left parenthesis x right parenthesis space d a l a m space p u l u h a n space r i b u space r u p i a h comma space m a k a space h a s i l space p e n j u a l a n space m a k s i m u m  a d a l a h space R p space 24.000.000 comma 00

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