4. Jumlah hari dari hari Selasa sampai dengan Minggu adalah ... hari.

The numbers are 14 & 16.
The equations you need to solve are:
x + y = 30 x - y = 2 ==> (redefine in terms of y) y = x - 2
substitute into first equation
x + x - 2 = 30 2x = 30 + 2 x = 32/2 = 16
16 + y = 30 30 - 16 = y = 14
x = 16 y = 14
And that's how that is done.

Answered by Anonymous | 2024-06-10

The correct answer is:
The numbers are 14 and 16.
Explanation :
Let x and y represent the numbers. Since the sum of the numbers is 30, this gives us the equation
x+y = 30.
Since the difference of the numbers is 2, this gives us the equation
x-y = 2.
This gives us the system
{ x − y = 2 x + y = 30 ​
To solve this, we will eliminate one variable. Since the coefficients are all the same, but the y-variables have different signs, we will eliminate them by adding the equations together:
{ + ( x − y = 2 ) x + y = 30 ​ 2 x = 32
Divide both sides by 2:
2x/2 = 32/2
x = 16.
Substitute this back into our first equation:
16+y=30
Subtract 16 from each side:
16+y-16=30-16
y=14

Answered by MsEHolt | 2024-06-11

The two numbers are 14 and 16. We found them by setting up a system of equations based on their sum and difference. Solving these equations step-by-step leads us to the answer.
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Answered by Anonymous | 2024-09-30

Jawaban:✅ Jawaban:Jumlah hari dari hari Selasa sampai dengan Minggu adalah 6 hari.Penjelasan dengan langkah-langkah: Penjelasan:Kita hitung jumlah hari mulai dari Selasa hingga Minggu, yaitu:1. Selasa2. Rabu3. Kamis4. Jumat5. Sabtu6. Minggu➡️ Total: 6 hari--- Catatan:Hitungan termasuk hari Selasa dan Minggu (hitung dari titik awal sampai akhir).Tidak perlu kembali ke Senin, karena hanya diminta sampai Minggu saja.Jadi, jawabannya 6 hari ✅

Answered by p136107 | 2025-07-06