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16-07-2019
Mathematics

contestada

The sum of a number and twice its reciprocal is 27/5. Find
the number.

Respuesta :

Аноним Аноним

16-07-2019

Answer:

x , reciprocal= 1/x

x+2(1/x)=27/5

x+2/x=27/5

x^2+2=27/5*x

x^2-27/5*x+2=0

(x-5)(x-2/5)=0

x=5, 2/5

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