daynasear daynasear

10-08-2016
Mathematics

contestada

(1000)(1.05)^3x=3000 how to solve?

Respuesta :

Panoyin Panoyin

13-08-2016

1000(1.05)³ˣ = 3000
1000 1000
  (1.05)³ˣ = 3
㏑[(1.05)³ˣ] = ㏑(3)
3x㏑(1.05) = ㏑(3)
  3㏑(1.05) 3㏑(1.05)
  x ≈ ¹/₃(22.52)
x ≈ 7.505

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