Jawaban:
( 4 x 75 + x)/5 = 80
(300 + x)/5 = 80
300 + x = 80 x 5 = 400
x = 400 - 300
x = 100
nilai ke 5 = 100
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Jawaban:
( 4 x 75 + x)/5 = 80
(300 + x)/5 = 80
300 + x = 80 x 5 = 400
x = 400 - 300
x = 100
nilai ke 5 = 100