Question

даю 35 баллов! помогите пж! срочно!​

Answer 1

$4,7k+3,6k-0,83=(4.7+3.6)k-0.83=8.3k-0.83\\\\\\k=3.06\\\\8.3*3.06-0.83=25.398-0.83=\boxed{24.568}\\\\\\k=30.6\\\\8.3*30.6-0.83=253.98-0.83=\boxed{253.15}$