bantu ya di kumpul besok

[tex] \frac{pk}{pl} = \frac{7.5}{17.5} \\ \frac{pk}{8 + pk} = \frac{0.3}{0.7} \\ \frac{0.7pk}{2.4 + 0.3pk} \\ =( 0.7 - 0.3) pk = 2.4 \\ pk = 6[/tex]


[tex] \frac{qr}{kl} = \frac{rs}{lm} \\ \frac{10}{8} = \frac{rs}{5} \\ rs = 6.25[/tex]

sorry kalau salah.