tentukan nilai n pada bentuk berikut agar bernilai benar?? a.28 per 72 =n per 18. b.24 per 96=1 per n c.27 per 81= 1 per n. d. n per 108 =1 pe

a.
28/72=n/18
72 x n = 28 x 18
72n  = 504
n  =504/72
n = 7

b. 24/96=1/n
24  x n = 96 x 1
24n = 96
n = 96/24
n = 4

c. 27/81=1/n
27 x n = 81 x 1
27n = 81
n = 81/27
n = 3

d. n/108=1/6
6 x n = 108 x 1
6n = 108
n=108/6
n = 18

e. 54/n = 2/9
2 x n = 54 x 9
2n = 486
n= 486/2
n = 243


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