Question

1)30:y=1,2


2)8y·1,7=46,24

Answer 1

$30 \div y = 1.2 \\ y = 30 \div 1.2 \\ \boldsymbol{y = 25}$

$8y \times 1.7 = 46.24 \\ 13.6y = 46.24 \\ y = 46.24 \div 13.6 \\ \boldsymbol{y = 3.4}$