Let the unknown number be x.
Given,
[tex]10 * x = 12 + \frac{5}{8} * x[/tex]
[tex]10x = 12 + \frac{5x}{8} [/tex]
[tex]10x - \frac{5x}{8} = 12[/tex]
[tex] \frac{(10x*8)-5x}{8} = 12[/tex]
[tex]80x-5x =12*8[/tex]
[tex]75x = 96[/tex]
x = [tex] \frac{96}{75} [/tex] = 1.28
Hence, the number is 1.28
