Question

Tolong jawabin soal ni 11 s/d 16 kecuali no 13
yg menjawab soal ini mudah²an dapat pahala amin

Answer 1

Nomor 11
4(2x+3) - 1 = 5x - 4
8x + 12 - 1 = 5x - 4
8x + 11 = 5x - 4
8x - 5x = -4 - 11
3x = -15
x = -15/3
x = -5
maka
2x - 5
= 2(-5) - 5
= -15 (A)

nomor 12
K = 2p + 2l
60 = 2(4l) + 2l
60 = 8l + 2l
60 = 10l
l = 60/10
l = 6
p = 4l = 4(6) = 24
maka;
Luas
= pl
= 24 x 6
= 144 m^2 (B)

nomor 14
2x - 4 = 2 (A)

nomor 15
8 - 5x < 3x - 16
-5x - 3x < -16 - 8
-8x < -24
x < 3 (A)

nomor 16
8x - 6 ≤ 10
8x ≤ 10 + 6
8x ≤ 16
x ≤ 2
A