Perusahaan garmen, selama tahun 2013 yang akan datang mempunyai rencana untuk memasarkan atau menjual hasil produksi nya sebesar 500.000 kodi setahun.

Let's say 'x' is the first digit in the number, and 'y' is the second one. You already know that x + y = 7 . Now here comes the fun part:
'x' is in the ten's place, so its value in the number is 10x , and the value of the whole number is (10x + y).
If you flip the digits around, then 'y' is in the ten's place, its value is 10y , and the value of the whole new number becomes (10y + x) .
The problem tells you that when they're flipped around, the value is 9 more.
(10y + x) = (10x + y) + 9 more
10y + x = 10x + y + 9
Just to make it neater and easier to handle, let's subtract 1x and 1y from each side:
9y = 9x + 9
Now. What to do with this. Remember that one up at the top ... x + y = 7 ? That's just what we need now. Call it [ y = 7 - x ], and we can plug that into the one we're struggling with:
9y = 9x + 9
9(7 - x) = 9x + 9
63 - 9x = 9x + 9
Subtract 9 from each side: 54 - 9x = 9x
Add 9x to each side: 54 = 18x
Divide each side by 18: 3 = x
Great. y = 7 - x y = 4
The original number is 34 . 3 + 4 = 7 Flip the digits, and you have 43 . 43 is 9 more than 34 . yay.
That was the elegant but tedious way to do it. Here is the brute-force but easy way to do it:
List of all the 2-digit numbers whose digits add up to 7, and their flips : 16 . . . . . 61 25 . . . . . 52 34 . . . . . 43 43 . . . . . 34 52 . . . . . 25
Do you see a number that becomes 9 greater when you flip it ?
Right there in the middle of the list . . . 34 ==> 43 .

Answered by AL2006 | 2024-06-10

10x+y-the\ number\\\\ \left\{\begin{array}{ccc}x+y=7\\10y+x=10x+y+9\end{array}\right

Answered by Anonymous | 2024-06-10

The two-digit number is 34, where the digits sum to 7 and reversing the digits results in a number that is 9 greater. This is confirmed by the equations x + y = 7 and y − x = 1 . Solving these equations gives x = 3 and y = 4 .
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Answered by AL2006 | 2024-10-15

Jawaban:8). ini jawabannya dan caranya- Triwulan I:[tex]500.000 \times 25\% = 125.000[/tex]- Triwulan II:[tex]500.000 \times \: 35\% = 175.000[/tex]- Triwulan III:[tex]500.000 \times 20\% = 100.000[/tex]- Triwulan IV:[tex]500.000 \times 20\% = 100.000[/tex]9). Produksi per TriwulanRumus:[tex](Penjualan) + (Persediaan \: Akhir) - (Persediaan \: Awal) = Total \: Kodi[/tex]- Triwulan I:[tex]125.000 + 20.000 - 30.000 = 115.000 [/tex]- Triwulan II:[tex]175.000 + 100.000 - 20.000 = 255.000[/tex]- Triwulan III:[tex]100.000 + 100.000 - 100.000 = 100.000[/tex]- Triwulan IV:[tex]100.000 + 20.000 - 100.000 = 20.000[/tex]10). sudah ada digambar yg saya kasih#SEMANGATBELAJAR!#TETAPSEMANGAT!#BELAJARBERSAMABRAINLY

Answered by adeliokanaya | 2025-07-04