Temen-temen, ada yang bisa bantu jawab ga? Aku nggak ngerti nih..huhu A. P : 8 = 30 : 48 B. 5/p = 60/84 C. P+1/4 = 96/120 D. 5/3 = 75/6p-3 E. 15/32 = p/p+2 F. 3

a. 5
b. 7
c. 66/120
g. 2/3

a.
p : 8 = 30 : 48
[tex] \frac{p}{8} = \frac{30}{48}[/tex]
[tex]\frac{p}{8} = \frac{5}{8}[/tex] --> ruas kanan disederhanakan (dibagi 6)
8p = 40
p = [tex] \frac{40}{8} [/tex]
p = 5

b.
[tex] \frac{5}{p} = \frac{60}{84} [/tex]
[tex] \frac{5}{p} = \frac{5}{7}[/tex] --> ruas kanan disederhanakan (dibagi 12)
[tex] \frac{5}{p} = \frac{5}{7} [/tex] --> kemudian dikali silang
p x 5 = 5 x 7
5p = 35
[tex]p = \frac{35}{5} [/tex]
p = 7

c.
[tex]p + \frac{1}{4} = \frac{96}{120} [/tex]
[tex]p + \frac{1}{4} = \frac{4}{5} [/tex] --> ruas kanan disederhanakan (dibagi 24)
[tex]p = \frac{4}{5} - \frac{1}{4} [/tex]
[tex]p = \frac{16}{20} - \frac{5}{20} [/tex] --> disamakan penyebutnya
[tex]p = \frac{11}{20} [/tex]

d.
[tex] \frac{5}{3} = \frac{75}{6p-3} [/tex] --> langsung dikali silang aj
5 x (6p - 3) = 75 x 3
30p -15 = 225
30p = 225 +15
30p = 240
p = [tex] \frac{240}{30} [/tex]
p = 8

e.
[tex] \frac{15}{32} = \frac{p}{p+2} [/tex] --> dikali silang
[tex]15(p+2) = 32p[/tex]
[tex]15p+30 = 32p[/tex]
[tex]32p-15p = 30[/tex]
[tex]17p = 30[/tex]
[tex]p = \frac{30}{17} [/tex]

f.
[tex] \frac{3p}{4} = \frac{12-p}{6} \\ 18p = 4(12-p) \\ 18p = 48 -4p \\ 18p -4p = 48\\14p = 48 \\ p= \frac{48}{14} \\[/tex]


sisanya kerjakan sendiri yaa, pake cara yang udah saya jelasin