a,b
b=a+1(consecutive)
16/100a - 6/100b=3,54
a)inlocuim:
[tex] \frac{16a}{100} \ - \frac{(a + 1) \times 6}{100} = 3.54[/tex]
[tex] \frac{16 - (6a + 6)}{100} = 3.54[/tex]
[tex] \frac{16a - 6a - 6}{100} = \frac{354}{100} [/tex]
au aceeasi baza, deci o putem elimina
[tex]10a - 6 = 354[/tex]
10a=354+6
10a=360
a=360/10=36
b=36+1=37
b)16/100×36 - 6/100×37=3.54
4/25×36 - 3/50×37=3.54
144/25 - 111/50=3.54
5.76 - 2.22=3.54
3.54=3.54
