Jika sebuah restoran memiliki 80 kursi dan 60% dari kursi tersebut terisi, berapa jumlah kursi yang kosong?

f ( x ) = 4 x − 3 an d D f ​ = R y = 4 x − 3 ⇒ y + 3 = 4 x / : 4 ⇒ 4 1 ​ y + 4 3 ​ = x f − 1 ( x ) = 4 1 ​ x + 4 3 ​ an d D f − 1 ​ = R ( f − 1 ∘ f ) ( 10 ) = f − 1 ( f ( 10 ) ) = = f − 1 ( 4 ⋅ 10 − 3 ) = f − 1 ( 37 ) = 4 1 ​ ⋅ 37 + 4 3 ​ = 4 37 ​ + 4 3 ​ = 4 40 ​ = 10

Answered by kate200468 | 2024-06-10

f ( x ) = 4 x − 3 y = 4 x − 3 4 x = y + 3 x = 4 1 ​ y + 4 3 ​ f − 1 ( x ) = 4 1 ​ x + 4 3 ​ f − 1 ∘ f = 4 1 ​ ( 4 x − 3 ) + 4 3 ​ f − 1 ∘ f = 4 4 x ​ − 4 3 ​ + 4 3 ​ f − 1 ∘ f = x

Answered by konrad509 | 2024-06-10

The calculation shows that ( f − 1 ∘ f ) ( 10 ) = 10 . This means that applying the function f and then its inverse f − 1 returns the original input. Thus, the result is as expected, confirming the relationship between functions and their inverses.
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Answered by kate200468 | 2024-10-24

Jawaban:32 kursiPenjelasan dengan langkah-langkah:= (100% - 60%) × 80= 40% × 80[tex] \tt = \frac{40}{100} \times 80[/tex][tex] \tt = \frac{3.200}{100} [/tex]= 32 kursi[tex]\boxed{ \red{ \boxed{\pink{\mathcal{M \frak{ ilana} \purple{ \tt01}}}}}} [/tex]

Answered by Milana01 | 2025-07-04

DiketahuiMemiliki 80 kursiDitanyaJumlah kursi yang kosong jika terisi 60%Dijawab[tex] = 60\% \times 80 \\ = \frac{60}{100} \times 80 \\ \\ = \frac{4800}{100} = 48[/tex]Kursi kosong= 80 - 48= 32KesimpulanMaka jawabannya 32 kursi.

Answered by aquila0152 | 2025-07-04