pat73 pat73
  • 26-09-2015
  • Mathematics
contestada

If 80% is 72 marks, what is full marks

Respuesta :

kattie kattie
  • 26-09-2015

I am pretty sure that it is one hundred. bye thanks for me being able to help! 
Answer Link
cleverowl
cleverowl cleverowl
  • 26-09-2015
72 80
—— = ——
x 100

Cross multiply and solve

7200 = 80x

Divide each side by 80

7200 = 80x
——— ——
80 80

And voila x is the answer for full marks

90 = x
Answer Link

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