jrare
jrare jrare
  • 01-04-2020
  • Mathematics
contestada

What is the ratio of a to b ? 2/1 = a+b/a-b

Respuesta :

surjithayer10 surjithayer10
  • 01-04-2020

Answer:

Step-by-step explanation:

[tex]\frac{a+b}{a-b} =\frac{2}{1} \\by ~componendo~and~dividendo\\\\\frac{(a+b)+(a-b)}{(a+b)_(a-b)} =\frac{2+1}{2-1} \\\frac{a+b+a-b}{a+b-a+b} =3\\\frac{2a}{2b} =3\\\frac{a}{b} =3\\a:b::2:1[/tex]

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