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
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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