Question

Номер 508 нада срочно незнаю как делать

Answer 1

1)х÷9/10=1
×=1×9/10
×=0.9

2)х÷19=16/19
×=19×16/19
×=16

3)×÷3=5/9
×=3×5/9
×=1 2/3

Answer 2

X / $\frac{9}{10}$ = 1
$\frac{10x}{9}$ = 1   | 9
10x = 9
x = 0.9

x / 19 = $\frac{16}{19}$    | 19
x = 16

x / 3 = $\frac{5}{9}$    | 9
3x = 5
x = $\frac{5}{3}$
x = 1 $\frac{2}{3}$