1. 1/p= 8.5 nilai 1/p+2 = 2. Jika P=84/18q, q=9/8r, pqr=1000. Maka nilai r= Tolong dibantu ya

[tex] \bold{1.)} [/tex] Nilai p

[tex] \frac{1}{p} [/tex] = 85

85p = 1 (kalikan silang)

p = [tex] \frac{1}{85} [/tex]

Nilai [tex] \frac{1}{p} [/tex] + 2

= [tex] \frac{1}{\frac{1}{85}} [/tex] + 2

= 85 + 2

[tex] \bold{2.)} [/tex] Substitusi

p = [tex] \frac{84/18} [/tex]

q = [tex] \frac{9}{8} [/tex]

pqr = 1.000

[tex] \frac{84}{18} x \frac{9}{8} [/tex] x r = 1.000

[/tex] \frac{756}{144} [/tex] x r = 1.000

[tex] \frac{21}{4} [/tex] x r = 1.000

r = 1.000 x [tex] \frac{4}{21} [/tex]

r = [tex] \frac{4.000}{21} [/tex]