Question

Determinati numerele a si b, daca a supra 3=6 supra b=12 supra5​

Answer 1

Răspuns:

$\frac{a}{3} =\frac{6}{b} =\frac{12}{5} \\ \frac{a}{3} = \frac{12}{5} => 5a=12*3\\ 5a=36|:5\\ a=7,2$

$\frac{6}{b} =\frac{12}{5} => 12b=6*5\\ 12b=30|:12\\ b=2,5$