jawab nomor 3 pake cara

Bab Program Linear
Matematika SMA Kelas XI

motor = p
mobil = q

p + q = 84 → dikali 2 menjadi 2p + 2q = 168

2p + 4q = 220
2p + 2q = 168
------------------- -
        2q = 52
          q = 26

p + q = 84
p + 26 = 84
p = 84 - 26
p = 58

f(p, q) = 1.000 p + 3.000 q
f(58, 26) = (1.000 x 58) + (3.000 x 26)
f(58, 26) = 58.000 + 78.000
f(58, 26) = Rp 136.000,00

jawabannya C