Answer:
a = 3.8
Step-by-step explanation:
a : 5.7 = 8 : 12
It can be also written as -
[tex] \frac{a}{5.7} = \frac{8}{12} [/tex]
[tex] = > \frac{a}{5.7} = \frac{2}{3} [/tex]
Multiplying 5.7 on both the sides ,
[tex] = > \frac{a}{5.7} \times 5.7 = \frac{2}{3} \times 5.7 [/tex]
[tex] = > a = \frac{2}{3} \times 5.7 = 3.8[/tex]
