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HwaDunshie
HwaDunshie HwaDunshie
  • 28-06-2015
  • Mathematics
Answered

50% of a certain number is 23. What is the number?

Verified Answer :

RedRicin
RedRicin RedRicin
  • 28-06-2015

50% = 50/100 = 1/2 (one half)

One half of a certain number is 23.
Note that the opposite of halving is doubling. (if you do both they cancel out)
Let's double 23 to get 46.
Half of 46 is 23.
Our number is 46.

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Anonymous Anonymous
  • 29-06-2015

Take that certain number as 'a'

50% = 0.5

0.5a = 23

Divde both sides by 0.5

0.5a = 23
/0.5    /0.5

a = 46

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