Seudónimo
Seudónimo
21-01-2016
Mathematics
contestada
60 minutes it 20% of blank minutes
Respuesta :
Billymkhoi
Billymkhoi
21-01-2016
We have a proportion: 60/?= 20/100
Cross multiply:
20*?= 60*100
⇒ ?= 60*100/20= 300
60 minutes is 20% of 300 minutes
~
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