valoveljtgabra valoveljtgabra
  • 25-11-2016
  • Mathematics
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what number is 15% of 80?
use percent proportions

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MissPhiladelphia
MissPhiladelphia MissPhiladelphia
  • 26-11-2016
!5% is equivalent to 15 parts over the whole 100 part. It is written in proportions as 15/100. 

Similarly, you need to find how many parts in 80 are equivalent to 15%or 15/100. So, just equate both equation with x as an unknown.

x/80 = 15/100
x = (15/100)*80
x = 12

Thus, the 15% of 80 is 12.
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