Question

X% от 7/9=2/10 от 3,5

Answer 1

7/9*x/100=2/10*35/10
7x/900=70/100
7x/900=7/10
7x=7*900/10
7x=630
x=90
Ответ:90

Answer 2

$\frac{7}{9} *\frac{x}{100} =3 \frac{1}{2} * \frac{2}{10}$
$\frac{7x}{900} = \frac{7*1}{2*5}$
x=$\frac{7*900}{7*10} =90$