Jika diketahui a = 2/3b, c = 3/2a, dan abc = 18 maka nilai b? A. 3 B. 2 C. 1 D. 3/2 E. 1/3
Matematika
mikahelac99
Pertanyaan
Jika diketahui a = 2/3b, c = 3/2a, dan abc = 18 maka nilai b?
A. 3
B. 2
C. 1
D. 3/2
E. 1/3
A. 3
B. 2
C. 1
D. 3/2
E. 1/3
2 Jawaban
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1. Jawaban BSunShine
Take it easy !
Known :
⇒ a = ²/₃
⇒ b = ³/₂
⇒ abc = 18
Asked :
⇒ c = ... ?
≡ abc = 18
≡ ²/₃ . ³/₂ . c = 18
≡ ⁶/₆ . c = 18
≡ c = 18
So , The mark of c = 18 -
2. Jawaban queenmahira
a= 2/3 b
c = 3/2 a
b =...?
abc = 18
2/3 b x b x 3/2 a = 18
2/3 b x b x 3/2 x 2/3 b = 18
b^3 x 2/3 = 18
b^3 = 18 x 3/2
b^3 = 27
b = 3
A. 3