raphaelbsilva raphaelbsilva

22-09-2014
Mathematics

contestada

1) Um número
somado com sua quarta parte é igual a 80. Qual é esse número?

Respuesta :

Illuminati750 Illuminati750

22-09-2014

Hello,

x= number
x/4= its fourth

So,

[tex]x+ \frac{x}{4} =80 \\ \\ \frac{5}{4}x=80 \\ \\ x = \frac{80*4}{5}\\ \\ x=64[/tex]

Answer: the number is 64

Answer Link

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