kushalpaudel14p39u34 kushalpaudel14p39u34
  • 28-01-2018
  • Mathematics
contestada

please i need solution of this

please i need solution of this class=

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Аноним Аноним
  • 28-01-2018
( 1 - x/100)^20  = 3843/55550

Taking logs

20 log (1 - x/100) = log (3843/55550)

log ( 1 - x/100) =  log (3843/55550)  / 20 = -0.0580007
1 - x/100 = 10^-0.0580007 = 0.875
x / 100 = 1 - 0.875 = 0.125
x = 12.5 Answer
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