lucyyyxxxx
lucyyyxxxx
13-03-2015
Mathematics
contestada
If 80% is 60 marks, what is full marks
Respuesta :
iGreen
iGreen
13-03-2015
Set up a proportion:
0.80/60 = 1/x
Cross multiply:
0.80x = 60
Divide 0.80 to both sides:
x = 7.5
Multiply by 100:
x = 75
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