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maka nilai a+b-2c dalam pecahan decimal adalah?
bantuin yaa :)
a + b - 2c
= 2 3/4 + 5,25 - 2(25%)
= 11/4 + 5,25 - 2(25/100)
= 2,75 + 5,25 - 2(0,25)
= 2,75 + 5,25 - 0,5
= 7,5
a + b + 2c = ...? (caranya di subtitusi)
2,75 + 5,25 + 2(0.25)
8+ 0,5
= 8,5