Question

Please dikumpulkan besok ! dengan caranya

Answer 1

Cari x dlu karna jumlah segitiga = 180 derajatmaka
95 + 3x - 5 + x + 10 = 180
3x + 100 = 180
3x = 180 - 100
3x = 80
x = 26,6
dibuletin = 26
BAC
3x - 5 =
3(26) - 5 = 73 (tak ada jawabannya)

soal  12
7x - 24 = 5y
7x - 5y = 24
2y = 24
y = 12 (D)

no 13
3(x + 1) + 2(x-4) = 10
3x +3 + 2x - 8 = 10
5x -5 = 10
5x = 10 + 5
5x = 15
x = 15/5
x = 3 (A)
kalau soalnya banyak gini point ga bisa cuma 13 maaf ya
no 2 = -12x -3 (a)

Answer 2

29) 3x-5 + x+10 + 95 = 180
4x+100 = 180
4x = 180-100
4x = 80
x = 80/4
x = 20
jadi, sudut BAC = 3x-5 = 3.20-5 = 60-5 = 55˚....(C)

11) A. langkah 1

12) 7y-24 = 5y
7y-5y = 24
2y = 24
y = 24/2
y = 12 ....(D)


13) 3x+3 + 2x-8 = 10
5x-5 = 10
5x = 10+5
5x = 15
x = 15/5
x = 3 ....A)